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Tag: vulnerability

Verizon DBIR: Vulnerability exploitation is the dominant initial access vector

Vulnerability exploitation has overtaken stolen credentials as the most common way attackers gain initial access to target networks, according to the 2026 Verizon Data Breach Investigations Report. This is the first time credential theft has been knocked off the top spot in the report’s 19-year history, the company noted. Known initial access vectors over time…

Microsoft provides mitigation for “YellowKey” BitLocker bypass flaw (CVE-2026-45585)

Microsoft is working on a fix for CVE-2026-45585 (aka “Yellowkey”), a vulnerability that can be used by attackers to bypass protections offered by BitLocker, the full-disk encryption feature built into Windows, and access users’ data. In the meantime, the company has provided step-by-step mitigation advice to protect affected Windows devices from exploitation. CVE-2026-45585 and the…

Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit

Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass. “Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred…

AI is drowning software maintainers in junk security reports

AI-assisted vulnerability research has exploded, unleashing a firehose of low-quality reports on overworked software maintainers who are wasting hours sifting through noise instead of fixing real problems. Linus Torvalds, the Linux kernel’s creator, says the flood has made the project’s security mailing list “almost entirely unmanageable, with enormous duplication due to different people finding the…

Attackers are exploiting critical NGINX vulnerability (CVE-2026-42945)

A critical NGINX vulnerability (CVE-2026-42945) disclosed last week is being exploited by attackers, VulnCheck security researcher Patrick Garrity revealed on Saturday. The vulnerability, dubbed NGINX Rift, can be reliably exploited to trigger a denial-of-service condition and can potentially allow for unauthenticated remote code execution, all achievable by sending a specially crafted HTTP request to a…

‘Patched’ Windows bug resurfaces 6 years later as working SYSTEM-level exploit

An old elevation of privilege (EoV) vulnerability affecting the Cloud Filter driver “cldflt.sys” in Windows has come back to haunt Microsoft, as researchers claim it is still exploitable six years after it was supposedly patched. The flaw, originally reported to Microsoft by Google Project Zero researcher James Forshaw in September 2020, was recently picked up…

AI shrinks vulnerability exploitation window to hours

Time has become organizations’ biggest vulnerability because the gap between vulnerability discovery and exploitation has narrowed to hours, according to Synack’s 2026 State of Vulnerabilities Report. Total vulnerabilities by severity (2022-2025) (Source: Synack) AI expands the attack surface Agentic AI systems that act autonomously across systems introduce new risks that require human expertise to identify…

Funnel Builder Flaw Under Active Exploitation Enables WooCommerce Checkout Skimming

A critical security vulnerability impacting the Funnel Builder plugin for WordPress has come under active exploitation in the wild to inject malicious JavaScript code into WooCommerce checkout pages with the goal of stealing payment data. Details of the activity were published by Sansec this week. The vulnerability currently does not have an official CVE identifier.…

Exchange Server zero-day vulnerability can be triggered by opening a malicious email

A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to think about the need to abandon on-premises email solutions. “Because it’s already being exploited in the wild, this isn’t a ‘patch next week situation; it’s a ‘mitigate right now’ emergency,” warned Rob Enderle of the Enderle Group.…

CVE-2026-20182: Critical Authentication Bypass in Cisco SD-WAN Can Grant Admin Access

A vulnerability affecting Cisco Catalyst SD-WAN Controller has drawn urgent attention after Cisco, Rapid7, and CISA confirmed active exploitation. CVE-2026-20182 is a critical authentication bypass flaw in Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager that carries a CVSS 10.0 score and can let an unauthenticated remote attacker gain administrative privileges on an affected…

CVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero-day

Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Microsoft Exchange…

CVE-2026-42897: Exchange Server OWA Spoofing Flaw Exploited via Crafted Email

Microsoft has disclosed a vulnerability impacting on-premise versions of Exchange Server that is already seeing active exploitation in the wild. Tracked as CVE-2026-42897, the issue carries a CVSS score of 8.1 and affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition, while Exchange Online is not impacted. Microsoft describes it as a…

Cisco patches another actively exploited SD-WAN zero-day (CVE-2026-20182)

Cisco has patched yet another Catalyst SD-WAN Controller authentication bypass vulnerability (CVE-2026-20182) that has been exploited as a zero-day by “a highly sophisticated cyber threat actor”. About CVE-2026-20182 CVE-2026-20182 – affecting both Cisco Catalyst SD-WAN Controller (the “brain” of the Cisco Catalyst SD-WAN solution) and Cisco Catalyst SD-WAN Manager (the management plane for the entire…

Cisco warns of an actively exploited SD-WAN flaw with max severity

Cisco has disclosed a max-severity authentication bypass vulnerability affecting its Catalyst SD-WAN Controller and Catalyst SD-WAN Manager platforms, warning that the flaw has already been found to be exploited in the wild. The disclosure follows an earlier authentication bypass vulnerability that Cisco patched in February. In the latest advisory, the company said the new flaw…

Unpatched Microsoft Exchange Server vulnerability exploited (CVE-2026-42897)

A critical cross-site scripting (XSS) vulnerability (CVE-2026-42897) in Microsoft Exchange Server is being exploited by attackers, Microsoft warned on Thursday. A permanent fix is still in the works. In the meantime, Microsoft provided temporary mitigations. About CVE-2026-42897 CVE-2026-42897 affects on-premises versions of Microsoft Exchange Server: Subscription Edition RTM, 2019, and 2016. Exchange Online is not…

On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email

Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897 (CVSS score: 8.1), has been described as a spoofing bug stemming from a cross-site scripting flaw. An anonymous researcher has been credited with discovering and reporting…

CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access Exploits

The U.S.Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a newly disclosed vulnerability impacting Cisco Catalyst SD-WAN Controller to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to remediate the issue by May 17, 2026. The vulnerability is a critical authentication bypass tracked as CVE-2026-20182. It’s

AI agent finds 18-year-old remote code execution flaw in Nginx

Researchers have found a critical vulnerability in the widely used Nginx web server that can potentially lead to remote code execution under certain conditions. The flaw is a heap buffer overflow that has gone undetected in the program’s code for the past 18 years. Tracked as CVE-2026-42945, the vulnerability is one of 4 bugs found…

Fragnesia: New Linux kernel LPE bug was spawned by Dirty Frag patch (CVE-2026-46300)

Researchers have found and disclosed yet another local privilege escalation (LPE) vulnerability in the Linux kernel: CVE-2026-46300, aka “Fragnesia”. The flaw is in the same class of vulnerabilities as the recently disclosed Dirty Frag bug(s). Like Dirty Frag, it affects the same Linux module (xfrm-ESP). In fact, according to Dirty Frag discoverer Hyunwoo Kim, Fragnesia…

Microsoft’s new AI system finds 16 Windows flaws, including four critical RCEs

Microsoft has unveiled a new AI-driven vulnerability discovery system that identified 16 previously unknown Windows vulnerabilities, including four critical remote code execution flaws, in what security analysts say could mark a major shift in how software vulnerabilities are discovered and remediated. The system, codenamed MDASH, was developed by Microsoft’s Autonomous Code Security team alongside the…

Microsoft’s new AI system finds 16 Windows flaws, including four critical RCEs

Microsoft has unveiled a new AI-driven vulnerability discovery system that identified 16 previously unknown Windows vulnerabilities, including four critical remote code execution flaws, in what security analysts say could mark a major shift in how software vulnerabilities are discovered and remediated. The system, codenamed MDASH, was developed by Microsoft’s Autonomous Code Security team alongside the…

JetBrains TeamCity vulnerability allows privilege escalation, API exposure (CVE-2026-44413)

JetBrains has patched a high-severity vulnerability (CVE-2026-44413) in TeamCity, its popular continuous integration and continuous delivery platform, and is urging organizations with on-premises and self-managed deployments to upgrade to the fixed version or implement a security patch. About CVE-2026-44413 CVE-2026-44413 allows for privilege escalation, and may allow attackers to expose some parts of the TeamCity…

cPanel flaw exposes enterprises to hosting supply-chain risks

A newly disclosed cPanel vulnerability is being exploited at scale, giving attackers a route into web hosting environments that many enterprises may not monitor closely. Analysts say the risk highlights weak visibility into hosting supply chains. The flaw, tracked as CVE-2026-41940, has been used to deploy backdoors, plant SSH keys, steal credentials, and compromise hosting…

Škoda confirms unauthorized access to its online shop

Car manufacturer Škoda discovered that attackers had exploited a vulnerability in its online shop software and gained temporary unauthorized access to the system. What happened? After discovering the incident, the company took the shop offline as a precautionary measure, fixed the vulnerability, referred the incident to a specialized IT forensics team for technical analysis, and…

Ollama Out-of-Bounds Read Vulnerability Allows Remote Process Memory Leak

Cybersecurity researchers have disclosed a critical security vulnerability in Ollama that, if successfully exploited, could allow a remote, unauthenticated attacker to leak its entire process memory. The out-of-bounds read flaw, which likely impacts over 300,000 servers globally, is tracked as CVE-2026-7482 (CVSS score: 9.1). It has been codenamed Bleeding Llama by Cyera. Ollama is a

Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag, (Fri, May 8th)

Less than two weeks after the public disclosure of the Copy Fail vulnerability (CVE-2026-31431), another local privilege escalation (LPE) vulnerability in the Linux kernel has been revealed. Referred to as “Dirty Frag,” this vulnerability was discovered and reported by Hyunwoo Kim (@v4bel) [1]. In this diary, I will provide a brief background on Dirty Frag,…

Linux Kernel Dirty Frag LPE Exploit Enables Root Access Across Major Distributions

Details have emerged about a new, unpatched local privilege escalation (LPE) vulnerability impacting the Linux kernel. Dubbed Dirty Frag, it has been described as a successor to Copy Fail (CVE-2026-31431, CVSS score: 7.8), a recently disclosed LPE flaw impacting the Linux kernel that has since come under active exploitation in the wild. The vulnerability was…

Palo Alto Networks firewall flaw has been exploited for several weeks

Palo Alto Networks warns that a critical zero-day vulnerability has been discovered in the PAN-OS firewall system. The vulnerability has already been exploited by suspected state-sponsored hackers for nearly a month, reports Bleeping Computer. The vulnerability, CVE-2026-0300, is located in the User-ID Authentication Portal (also known as the Captive Portal) and allows attackers to execute…

Ollama vulnerability highlights danger of AI frameworks with unrestricted access

A critical vulnerability in Ollama poses a direct risk of sensitive information leaks to more than 300,000 internet-exposed servers, researchers have found. The flaw, tracked as CVE-2026-7482, stems from an out-of-bounds heap read in Ollama’s model quantization pipeline. Ollama is one of the most popular frameworks for running AI models on local hardware. The flaw…

State-sponsored hackers likely behind zero-day attacks on Palo Alto firewalls

Palo Alto Networks believes the in-the-wild exploitation of a zero-day vulnerability (CVE-2026-0300) in its firewalls is likely the work of state-sponsored threat actors. A flaw with no patch (yet) CVE-2026-0300 is a buffer overflow vulnerability in the User-ID Authentication Portal service of Palo Alto Networks PAN-OS software, and can be exploited by unauthenticated attackers sending…

A critical Palo Alto PAN-OS zero-day is being exploited in the wild

Attackers are actively exploiting a zero-day vulnerability affecting some Palo Alto Networks’ customers’ firewalls, the security vendor said in an advisory Tuesday. The critical memory corruption vulnerability — CVE-2026-0300 — affects the authentication portal of PAN-OS, and allows unauthenticated attackers to run  code with root privileges on the vendor’s PA-Series and VM-Series firewalls, the company…

Palo Alto Networks Firewall Zero-Day Exploited in Active Attacks 

Palo Alto Networks recently disclosed a firewall vulnerability that is already being exploited in the wild. The flaw affects the PAN-OS User-ID Authentication Portal and could allow unauthenticated attackers to remotely execute code with root privileges on vulnerable devices. This vulnerability “… allows an unauthenticated attacker to execute arbitrary code with root privileges on the…

Root-level RCE vulnerability in Palo Alto firewalls exploited (CVE-2026-0300)

A critical vulnerability (CVE-2026-0300) affecting Palo Alto Networks firewalls is being actively exploited by attackers, the security company acknowledged today, and urged customers to implement mitigations as they are still working on fixes. About CVE-2026-0300 CVE-2026-0300 is a buffer overflow vulnerability in the User-ID Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS…

Google to pay up to $1.5 million for zero-click Pixel Titan M exploits

Google has revised its Android and Chrome Vulnerability Reward Programs (VRPs), which pay security researchers to report vulnerabilities in Android, Google hardware, and the Chrome browser. The update raises top bounties to $1.5 million and adjusts rewards for lower-complexity reports. The program targets vulnerability classes that automated tools struggle to detect and prioritizes researcher-driven findings.…

Android Zero-Click RCE Vulnerability Enables Remote Shell Access  

Google has released a patch for an Android vulnerability that allows remote code execution (RCE) without requiring any user interaction.  The flaw could “… lead to remote (proximal/adjacent) code execution as the shell user with no additional execution privileges needed. User interaction is not needed for exploitation,” said Google in its security advisory. Inside the…

Weaver E-cology RCE Flaw CVE-2026-22679 Actively Exploited via Debug API

A critical security vulnerability in Weaver (Fanwei) E-cology, an enterprise office automation (OA) and collaboration platform, has come under active exploitation in the wild. The vulnerability (CVE-2026-22679, CVSS score: 9.8) relates to a case of unauthenticated remote code execution affecting Weaver E-cology 10.0 versions prior to 20260312. The issue resides in the “/papi/esearch/data/devops/

Multiple threat actors actively exploit cPanel vulnerability (CVE-2026-41940)

The situation around the critical cPanel authentication bypass vulnerability (CVE-2026-41940) has deteriorated significantly since our initial coverage. Exploratory probing has evolved into multi-actor exploitation, leading to disrupted websites, ransomware and malware deployment, and targeted attacks. “Sorry” ransomware Attackers have taken advantage of CVE-2026-41940 to mass-exploit vulnerable internet-facing cPanel instances to breach servers, deface websites and…

AI speeds flaw discovery, forcing rapid updates, UK NCSC warns

The UK cyber agency NCSC warns AI is speeding up vulnerability discovery, likely causing a “patch wave” of urgent software updates to fix exposed flaws. The UK’s National Cyber Security Centre (NCSC) warns that AI is rapidly accelerating the discovery of software vulnerabilities, increasing the risk of large-scale exploitation. CTO Ollie Whitehouse says skilled attackers…

cPanel’s authentication bypass bug is being exploited in the wild, CISA warns

A severe authentication bypass vulnerability in cPanel, one of the most widely deployed web hosting control panel platforms on the internet, is being actively exploited in the wild, according to security researchers and hosting providers. The vulnerability, tracked as CVE-2026-41940, affects all supported versions of cPanel and WebHost Manager (WHM) released after version 11.40, as…

cPanel zero-day exploited for months before patch release (CVE-2026-41940)

A critical authentication bypass vulnerability (CVE-2026-41940) in cPanel, a popular web-based control panel for managing web hosting accounts, is being exploited by attackers in the wild. What’s more, attackers didn’t have to wait for watchTowr security researchers to release technical details about the vulnerability – they have been spotted exploiting CVE-2026-41940 since February 23, and…

CVE-2026-41940: Critical cPanel & WHM Authentication Bypass Exposes Hosting Servers to Admin Takeover

A newly disclosed CVE-2026-41940 vulnerability in cPanel & WHM has put internet-facing hosting infrastructure under urgent scrutiny. The flaw carries a CVSS score of 9.8 and can let an unauthenticated remote attacker bypass authentication and gain administrative access, while cPanel’s advisory says the issue affects cPanel software, including DNSOnly, across all versions after 11.40. For…

Nine-year-old Linux kernel flaw enables reliable local privilege escalation (CVE-2026-31431)

Security researchers at Theori have disclosed a high-severity local privilege escalation (LPE) vulnerability (CVE-2026-31431) in the Linux kernel. The flaw, nicknamed “Copy Fail”, has affected virtually every major Linux distribution shipped since 2017, and a working proof-of-concept (PoC) exploit is publicly available. About CVE-2026-31431 According to Theori researchers, CVE-2026-31431 originates from the interaction of three…

Max-severity RCE flaw found in Google Gemini CLI

Security researchers are warning about a max severity vulnerability in Google Gemini CLI that could allow remote code execution (RCE) in environments where the tool processes untrusted inputs. The issue was disclosed by Novee Security researchers and affects the @google/gemini-cli package and its associated GitHub Action, widely used in CI/CD workflows. “Gemini CLI (@google/gemini-cli) and…

cPanel Vulnerability Exposes Servers to Takeover 

An authentication vulnerability in cPanel and Web Host Manager (WHM) is putting web hosting environments at risk, prompting the company to release an emergency patch and warn administrators to act quickly.  The flaw affects multiple authentication paths and could allow attackers to gain unauthorized access to servers if left unpatched. “Let’s call this what it…

GitHub Flaw Enables Remote Code Execution With a Single Git Push

A vulnerability in GitHub’s infrastructure could have allowed attackers to execute code on backend systems using nothing more than a standard git push command.  The flaw affected both GitHub.com and GitHub Enterprise Server (GHES), exposing millions of repositories to potential compromise before it was patched. “By exploiting an injection flaw in GitHub’s internal protocol, any…

Critical GitHub RCE bug exposed millions of repositories

A critical remote code execution (RCE) vulnerability in GitHub could potentially allow attackers to execute arbitrary code on GitHub.com and GitHub Enterprise Server. Uncovered by Wiz researchers, the now-patched bug exploited how GitHub handles server-side “git push” operations. By crafting malicious input within a standard Git push, an authenticated user could execute arbitrary commands via…

CISA, Microsoft warn of active exploitation of Windows Shell vulnerability (CVE-2026-32202)

Attackers are exploiting CVE-2026-32202, a zero-click Windows Shell spoofing vulnerability that causes victims’ systems to authenticate the attacker’s server, CISA and Microsoft have warned. About CVE-2026-32202 CVE-2026-32202 stems from an incomplete patch for CVE-2026-21510, a vulnerability that, in conjunction with CVE-2026-21513, has been exploited by APT28 (aka Fancy Bear) via weaponized LNK files that bypass…

Researchers Discover Critical GitHub CVE-2026-3854 RCE Flaw Exploitable via Single Git Push

Cybersecurity researchers have disclosed details of a critical security vulnerability impacting GitHub.com and GitHub Enterprise Server that could allow an authenticated user to obtain remote code execution with a single “git push” command. The flaw, tracked as CVE-2026-3854 (CVSS score: 8.7), is a case of command injection that could allow an attacker with push access…

Critical Cursor bug could turn routine Git into RCE

Security researchers have disclosed a high-severity vulnerability affecting the Cursor IDE, allowing arbitrary code execution on a developer’s machine through a seemingly routine repository interaction. According to findings by AI pentesting platform Novee Security, once a developer cloned and interacted with a malicious repository, the IDE’s AI agent could trigger embedded Git logic, resulting in…

The Mythos Discovery: What It Means for Vulnerability Disclosure

The Mythos Discovery: What It Means for Vulnerability Disclosure AI just broke vulnerability disclosure at scale. Earlier this month, Anthropic’s Claude Mythos Preview AI model discovered 27-year-old bugs that survived decades of human review. Now the industry’s top security leaders are calling it a watershed moment. Here’s what software vendors need to know. What Happened…

CVE-2026-40372: Critical ASP.NET Core Flaw May Let Attackers Gain SYSTEM Privileges

Microsoft has released out-of-band updates for CVE-2026-40372, a high-impact ASP.NET Core privilege-escalation vulnerability tied to the platform’s Data Protection cryptographic APIs. Public reporting says the flaw carries a CVSS score of 9.1 and could allow an unauthenticated attacker to forge authentication material and ultimately obtain SYSTEM privileges on affected systems. The issue stands out not…

CVE-2026-40372: Microsoft Patches ASP.NET Core Privilege Escalation Vulnerability

Microsoft has released an out-of-band update to fix an ASP.NET Core vulnerability that could allow attackers to take full control of affected systems.  The flaw enables unauthenticated privilege escalation, increasing risk for enterprises running .NET workloads.  “Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network,” said…

Microsoft out-of-band updates fixed critical ASP.NET Core privilege escalation flaw

Microsoft fixed critical ASP.NET Core vulnerability, tracked as CVE-2026-40372 (CVSS score of 9.1), that lets attackers escalate privileges. Microsoft released out-of-band updates to address a serious ASP.NET Core vulnerability tracked as CVE-2026-40372 (CVSS score of 9.1). Microsoft fixed the flaw in ASP.NET Core version 10.0.7. An attacker could exploit the flaw to gain SYSTEM-level privileges, access…

Microsoft Patches Critical ASP.NET Core CVE-2026-40372 Privilege Escalation Bug

Microsoft has released out-of-band updates to address a security vulnerability in ASP.NET Core that could allow an attacker to escalate privileges. The vulnerability, tracked as CVE-2026-40372, carries a CVSS score of 9.1 out of 10.0. It’s rated Important in severity. An anonymous researcher has been credited with discovering and reporting the flaw. “Improper verification of…