Geek Guy

Tag: vulnerability

Anthropic bets on EPSS for the coming bug surge

Anthropic’s Mythos has intensified a problem that vulnerability management programs were already struggling to contain: too many vulnerabilities and not enough clarity about which ones matter. What changes with Mythos — and the AI-based class of vulnerability discovery systems it represents — is the speed at which software flaws can be found and exploited. That…

Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape

A critical security vulnerability has been disclosed in a Python-based sandbox called Terrarium that could result in arbitrary code execution. The vulnerability, tracked as CVE-2026-5752, is rated 9.3 on the CVSS scoring system. “Sandbox escape vulnerability in Terrarium allows arbitrary code execution with root privileges on a host process via JavaScript prototype chain traversal,” according…

Google Patches Antigravity IDE Flaw Enabling Prompt Injection Code Execution

Cybersecurity researchers have discovered a vulnerability in Google’s agentic integrated development environment (IDE), Antigravity, that could be exploited to achieve code execution. The flaw, since patched, combines Antigravity’s permitted file-creation capabilities with an insufficient input sanitization in Antigravity’s native file-searching tool, find_by_name, to bypass the program’s Strict

Mythos can find the vulnerability. It can’t tell you what to do about it.

Mythos matters. It is a significant step forward in AI-assisted vulnerability discovery. But it does not mean cybersecurity changed overnight, nor does it mean enterprises are suddenly facing fully automated exploitation at internet scale tomorrow. It does mean the offensive side of AI is continuing to improve. The defensive side needs to catch up now.…

Network ‘background noise’ may predict the next big edge-device vulnerability

Attackers rarely exploit an edge-device vulnerability indiscriminately. Typically, they first test how widely the flaw can be used and how much access it can provide, then move on to steal data or disrupt operations. Pre-attack surveillance and planning leaves a lot of noise in its wake. These signals — particularly spikes in traffic that are…

Flawed Cisco update threatens to stop APs from getting further patches

Cisco admins are scrambling to patch a critical flash memory overflow vulnerability in over 200 Cisco Systems IOS XE-based models of wireless access points (APs), caused by a recent flawed software update. If the issue is not corrected quickly, the AP’s memory will become so flooded that new software updates will be blocked and the…

NIST admits defeat on NVD backlog, will enrich only highest-risk CVEs going forward

NIST is overhauling how it manages the National Vulnerability Database (NVD) and switching to a risk-based model that prioritizes “enrichment” of only the most critical CVE-numbered security vulnerabilities. “This change is driven by a surge in CVE submissions, which increased 263% between 2020 and 2025,” the National Institute of Standards and Technology said. “We don’t…

GitLab Extends Agentic AI with New Automated Security Remediation, Pipeline Setup, and Delivery Analytics

 COMPANY NEWS: Agentic SAST Vulnerability Resolution is now generally available, automatically generating ready-to-merge code fixes and helping resolve vulnerabilities before they reach production. Two new agents in GitLab Duo Agent Platform allow teams to stand up a running CI pipeline in minutes and get fast visual answers from live software lifecycle data, eliminating two of…

Critical nginx UI tool vulnerability opens web servers to full compromise

Security vendor Pluto Security has published details of a critical vulnerability in the open-source nginx UI web server configuration tool that has been under active exploitation by cybercriminals since March. News of the flaw, identified as CVE-2026-33032, first appeared on the National Vulnerability Database (NVD) on March 30, the same day that threat intelligence companies…

Critical flaw in Marimo Python notebook exploited within 10 hours of disclosure

A critical pre-authentication remote code execution vulnerability in Marimo, an open-source Python notebook platform owned by AI cloud company CoreWeave, was exploited in the wild less than 10 hours after its public disclosure, according to the Sysdig Threat Research Team. The vulnerability, tracked as CVE-2026-39987 with a severity score of 9.3 out of 10, affects…

Marimo RCE Flaw Exploited Within Hours of Disclosure

A vulnerability in the open-source Marimo Python notebook platform is already being actively exploited, underscoring how quickly attackers can turn newly disclosed flaws into real-world attacks.  Less than 10 hours after public disclosure, threat actors developed a working exploit and began targeting exposed systems. “Within 9 hours and 41 minutes of the vulnerability advisory’s publication,…

Adobe fixes actively exploited Acrobat Reader flaw CVE-2026-34621

Adobe addressed a critical Acrobat Reader vulnerability, tracked as CVE-2026-34621, which is actively exploited to run malicious code. Adobe released emergency updates to address a critical vulnerability, tracked as CVE-2026-34621 (CVSS score of 8.6), in Adobe Acrobat Reader, which is being actively exploited. The flaw could allow attackers to execute malicious code on affected systems,…

Old Docker authorization bypass pops up despite previous patch

Researchers warn about a new vulnerability that allows attackers to bypass authorization plug-ins in Docker Engine and gain root-level access to host systems. The flaw has the same root cause as another authorization bypass vulnerability patched in 2024, but the underlying problem has been known since 2016. Tracked as CVE-2026-34040, the new vulnerability is rated…

Zero-Days, Data Breaches, and AI Risks Define This Week’s Cybersecurity Landscape in 2026

Major Threats & Vulnerabilities Zero-Day and Critical Exploits A new zero-day vulnerability in Adobe Acrobat Reader is being actively exploited through malicious PDFs. Attackers can steal data and compromise systems, with no patch currently available. Security teams are urged to block untrusted PDFs, disable JavaScript, and use sandboxing with outbound traffic monitoring. The Fortinet EMS…

EngageLab SDK Flaw Exposed 50M Android Users, Including 30M Crypto Wallets

Details have emerged about a now-patched security vulnerability in a widely used third-party Android software development kit (SDK) called EngageLab SDK that could have put millions of cryptocurrency wallet users at risk. “This flaw allows apps on the same device to bypass Android security sandbox and gain unauthorized access to private data,” the Microsoft Defender

Adobe Acrobat Reader Zero Day Exploited in Active PDF Attacks

Attackers have been exploiting a zero-day vulnerability in Adobe Acrobat Reader for months, using malicious PDF files to silently steal data and potentially take over victim systems. Active since at least Dec. 2025, the campaign highlights how a seemingly routine document can serve as an effective entry point for system compromise. This exploit “allows the…

GrafanaGhost Flaw Allows Silent Data Exfiltration

A vulnerability called GrafanaGhost allows attackers to quietly extract sensitive data from Grafana environments without user interaction or traditional compromise techniques.  Discovered by researchers at Noma Security, the flaw highlights how AI-driven features can introduce new, difficult-to-detect attack paths in widely used platforms. “Across ForcedLeak, GeminiJack, DockerDash, and now GrafanaGhost, we keep seeing the same…

Acrobat Reader zero-day exploited in the wild for many months

Unknown attackers have exploited a zero-day Adobe Acrobat Reader vulnerability since November 2025 and possibly even earlier, security researcher Haifei Li has discovered. PDF files carry the exploit Haifei Li is one of the creators of EXPMON, a sandbox-based cybersecurity system for detecting advanced file-based exploits. It does so by analyzing suspicious files submitted through…

Adobe Reader Zero-Day Exploited via Malicious PDFs Since December 2025

Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December 2025. The finding, detailed by EXPMON’s Haifei Li, has been described as a highly-sophisticated PDF exploit. The artifact (“Invoice540.pdf”) first appeared on the VirusTotal platform on November 28, 2025. A second 

Patch windows collapse as time-to-exploit accelerates

The gap between vulnerability disclosure and exploitation is drastically decreasing, putting security teams’ patching practices on notice. According to Rapid7’s latest Cyber Threat Landscape Report, confirmed exploitation of newly disclosed high- and critical-severity vulnerabilities (CVSS 7-10) increased 105% year to 146 in 2025, up from 71 in 2024. Moreover, the median time from vulnerability publication…

Anthropic’s new AI model finds and exploits zero-days across every major OS and browser

Automated vulnerability discovery tools have existed for decades, and the gap between finding a bug and building a working exploit has always slowed attackers. That gap is now substantially narrower. Anthropic’s Claude Mythos Preview, a new general-purpose language model being made available only to a limited group of critical industry partners and open source developers,…

Fortinet releases emergency hotfix for FortiClient EMS zero-day flaw

Hackers have been exploiting a critical vulnerability in FortiClient Endpoint Management Server (FortiClient EMS) since at least the end of March. Fortinet has published an advisory and released an emergency hotfix that can be applied to affected deployments until a patched version can be released. The vulnerability, now tracked as CVE-2026-35616, allows unauthenticated attackers to…

NomShub Vulnerability Chain Exposes Hidden Risks in AI Coding Tools

A vulnerability chain in an AI-powered code editor is raising alarms about how autonomous developer tools can be turned against their users.  Dubbed NomShub, the flaw allows attackers to gain persistent shell access simply by luring a developer into opening a malicious repository — no traditional exploit required. “When an AI agent can execute shell…

Docker CVE-2026-34040 Lets Attackers Bypass Authorization and Gain Host Access

A high-severity security vulnerability has been disclosed in Docker Engine that could permit an attacker to bypass authorization plugins (AuthZ) under specific circumstances. The vulnerability, tracked as CVE-2026-34040 (CVSS score: 8.8), stems from an incomplete fix for CVE-2024-41110, a maximum-severity vulnerability in the same component that came to light in July 2024. “

‘GrafanaGhost’ bypasses Grafana’s AI defenses without leaving a trace

Security researchers at Noma Security have disclosed a new vulnerability they are calling GrafanaGhost, an exploit capable of silently stealing sensitive data from Grafana environments by chaining multiple security bypasses, including a method that circumvents the platform’s AI model guardrails without requiring any user interaction. Grafana is widely deployed across enterprise organizations as a central…

Docker Flaw (CVE-2026-34040) Lets Attackers Bypass Security Controls and Take Over Hosts

A vulnerability in Docker Engine allows attackers to bypass authorization controls and potentially gain full access to host systems.  Cyera researchers found that the flaw affects a core security mechanism relied on by organizations to enforce container policies. “This research shows that a lot of foundational infrastructure is still carrying old bug classes in places…

CVE-2026-35616: FortiClient EMS Flaw Under Active Exploitation

Fortinet disclosed a critical FortiClient EMS vulnerability that is already being exploited in the wild.  The flaw could allow unauthenticated attackers to bypass API protections and execute unauthorized code or commands on exposed systems.  “This is a zero-day. While there is no full patch, we have to give credit where credit is due: Fortinet has…

High-Severity Vulnerabilities, Supply Chain Breaches, and AI Threats Redefine Cybersecurity This Week

Major Threats & Vulnerabilities High-Severity Flaws A newly disclosed Cisco IMC vulnerability (CVSS 9.8) allows unauthenticated attackers to gain full administrative access to UCS servers. Cisco has issued patches, and while no active exploitation has been observed, immediate updates are strongly advised. In another critical discovery, a GIGABYTE Control Center flaw enables remote code execution…

6 Best Bitcoin Vulnerability Scanners & Blockchain Security Tools Compared

In this post, I will talk about the 6 best Bitcoin vulnerability scanners & blockchain security tools. Last year, North Korean hackers siphoned $2 billion in cryptocurrency—about sixty percent of all reported thefts in 2025—with a single $1.5 billion exchange breach leading the spree. Google’s Quantum AI team estimates a quantum computer will break Bitcoin’s…

Cisco fixes critical IMC auth bypass present in many products

Cisco has released patches for a critical vulnerability in its out-of-band management solution, present in many of its servers and appliances. The flaw allows unauthenticated remote attackers to gain admin access to the Cisco Integrated Management Controller (IMC), which gives administrators remote control over servers even when the main OS is shut down. The vulnerability,…

Hackers Exploit CVE-2025-55182 to Breach 766 Next.js Hosts, Steal Credentials

A large-scale credential harvesting operation has been observed exploiting the React2Shell vulnerability as an initial infection vector to steal database credentials, SSH private keys, Amazon Web Services (AWS) secrets, shell command history, Stripe API keys, and GitHub tokens at scale. Cisco Talos has attributed the operation to a threat cluster it tracks as

TrueConf zero-day vulnerability exploited to target government networks

Suspected China-nexus attackers have leveraged a zero-day vulnerability (CVE-2026-3502) in the TrueConf client application to distribute malware within government networks in Southeast Asia, Check Point researchers discovered. Malicious client update attack chain (Source: Check Point) Trusted update mechanism turned into attack vector TrueConf is a videoconferencing platform designed to run on private local networks (LANs)…

The Invisible Breach: How AI Agents Became the Most Dangerous Attack Surface of 2025–2026

The Attack That Requires No Click In June 2025, Microsoft patched a critical vulnerability in Microsoft 365 Copilot — one that its discoverers at Aim Security described as something that had never been seen before. A threat actor needed only to send a carefully crafted email to any employee within a target organization. No link.…

5-month-old F5 BIG-IP DoS bug becomes critical RCE exploited in the wild

A vulnerability misclassified five months ago as a denial-of-service issue in F5 BIG-IP Access Policy Manager (APM) turned out to be a critical pre-authentication remote code execution flaw that is now under active exploitation. Hackers are using it to deploy a persistent malware program that runs with root privileges. The CVE-2025-53521 vulnerability was first disclosed…

OpenAI Patches ChatGPT Data Exfiltration Flaw and Codex GitHub Token Vulnerability

A previously unknown vulnerability in OpenAI ChatGPT allowed sensitive conversation data to be exfiltrated without user knowledge or consent, according to new findings from Check Point. “A single malicious prompt could turn an otherwise ordinary conversation into a covert exfiltration channel, leaking user messages, uploaded files, and other sensitive content,” the cybersecurity company said in

Critical Fortinet FortiClient EMS bug under active attack (CVE-2026-21643)

A critical SQL injection vulnerability (CVE-2026-21643) in Fortinet FortiClient Endpoint Management Server (EMS), a management server for FortiClient endpoint agents on various platforms, is under active exploitation. The warning comes from Defused Cyber, which helps organizations deploy honeypots/fake assets, and uses them as well to capture real attack attempts and exploits and provide early warning…

Attackers are exploiting RCE vulnerability in BIG-IP APM systems (CVE-2025-53521)

A critical unauthenticated remote code execution vulnerability (CVE-2025-53521) in F5’s BIG-IP Access Policy Manager (APM) solution is under active exploitation, the US Cybersecurity and Infrastructure Security Agency warned on Friday. CISA added the flaw to its Known Exploited Vulnerabilities catalog after F5 updated the related security advisory, The advisory wasinitially published on October 15, 2025,…

New critical Citrix NetScaler hole of similar severity to CitrixBleed2, says expert

A new critical vulnerability that is similar to the widely-exploited CitrixBleed and CitrixBleed2 holes should be patched in NetScaler devices immediately, say experts. The hole, CVE-2026-3055, is an out-of-bounds read vulnerability in customer-managed NetScaler ADC and NetScaler Gateway devices configured as SAML IDP for approving identity and authentication. It’s rated at 9.3 in severity on…

Oracle issues emergency fix for pre-auth RCE in Identity Manager (CVE-2026-21992)

Oracle has released an out-of-band patch for a critical and easily exploitable vulnerability (CVE-2026-21992) in Oracle Identity Manager and Oracle Web Services Manager. The company did not say whether the vulnerability has been exploited as a zero-day, but has urged customers to apply the updates or provided mitigations as soon as possible. About CVE-2026-21992 CVE-2026-21992…

Trivy vulnerability scanner backdoored with credential stealer in supply chain attack

Attackers have compromised the widely used open-source Trivy vulnerability scanner, injecting credential-stealing malware into official releases and GitHub Actions used by thousands of CI/CD workflows. The breach could trigger a cascade of additional supply-chain compromises if impacted projects and organizations don’t rotate their secrets immediately. The attack, disclosed by Trivy maintainers today, results from an…

Trivy Security Scanner GitHub Actions Breached, 75 Tags Hijacked to Steal CI/CD Secrets

Trivy, a popular open-source vulnerability scanner maintained by Aqua Security, was compromised a second time within the span of a month to deliver malware that stole sensitive CI/CD secrets. The latest incident impacted GitHub Actions “aquasecurity/trivy-action” and “aquasecurity/setup-trivy,” which are used to scan Docker container images for vulnerabilities and set up GitHub Actions workflow

Cisco FMC flaw was exploited by Interlock weeks before patch (CVE-2026-20131)

A critical vulnerability (CVE-2026-20131) in Cisco Secure Firewall Management Center (FMC) that Cisco disclosed and patched in early March 2026 has been exploited as a zero-day by the Interlock ransomware gang, Amazon CISO and VP of Security Engineering CJ Moses revealed. “Our research [using Amazon’s MadPot system of honeypots] found that Interlock was exploiting this…

Unpatched ScreenConnect servers open to attack (CVE-2026-3564)

ConnectWise has patched a critical vulnerability (CVE-2026-3564) that could enable attackers to hijack ScreenConnect sessions by abusing ASP.NET machine keys to forge trusted authentication. About CVE-2026-3564 The ScreenConnect remote access platform is popular with managed service providers, IT departments, and technology solution providers. They can opt for the cloud-hosted version or can deploy it on…

Telnet vulnerability opens door to remote code execution as root

A critical Telnet vulnerability with a CVSS rating of 9.8 enables attackers to take full control of affected systems before authentication even kicks in, security researchers at Dream Security have warned. Tracked as CVE-2026-32746, the vulnerability is in GNU inetutils telnetd, is a widely deployed implementation of the Telnet remote access protocol found across legacy…

CISA warns of active exploitation of Microsoft SharePoint vulnerability (CVE-2026-20963)

CVE-2026-20963, a remote code execution (RCE) SharePoint vulnerability Microsoft fixed in January 2026, is being exploited by attackers. The confirmation comes from the US Cybersecurity and Infrastructure Security Agency (CISA), which added the flaw to its Known Exploited Vulnerabilities (KEV) catalog on Wednesday. About CVE-2026-20963 CVE-2026-20963 affects Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Server…

Interlock group exploiting the CISCO FMC flaw CVE-2026-20131 36 days before disclosure

The Interlock ransomware group has exploited a Cisco FMC zero-day RCE vulnerability in attacks since late January. The Interlock ransomware group has been exploiting a critical zero-day RCE vulnerability, tracked as CVE-2026-20131 (CVSS score of 10.0), in Cisco Secure Firewall Management Center (FMC) since late January. The vulnerability is a remote code execution flaw that…

NinjaOne Vulnerability Management enables real-time detection and autonomous patching

NinjaOne has unveiled NinjaOne Vulnerability Management, a new solution that helps IT teams identify, prioritize, and remediate vulnerabilities faster, without relying on periodic scans from security teams that often lack context and connection to remediation workflows. Built natively into the NinjaOne platform, the new solution brings together AI-driven real-time vulnerability assessment, patch confidence scoring, and…

NinjaOne Intros AI-Driven Vulnerability Management Solution

Unified IT management software provider NinjaOne has unveiled NinjaOne Vulnerability Management, a new solution designed to help IT teams identify, prioritize, and remediate vulnerabilities faster, without relying on periodic scans from security teams that often lack context and connection to remediation workflows.  Moving away from traditional vulnerability management Built natively into the platform, NinjaOne says…

Hack the AI Brain: LangSmith Vulnerability Could Expose Sensitive AI Data

A vulnerability in LangSmith, a widely used AI observability platform, could have allowed attackers to hijack user accounts and access sensitive enterprise data flowing through large language model (LLM) systems. Researchers at Miggo Security discovered the flaw, which could allow token theft and account takeover if a logged-in user visited a malicious webpage.  The vulnerability…

Active Directory Flaw Enables SYSTEM Privilege Escalation

A vulnerability in Microsoft’s Active Directory Domain Services could allow attackers to escalate privileges and potentially take full control of affected systems.  “Improper restriction of names for files and other resources in Active Directory Domain Services allows an authorized attacker to elevate privileges over a network,” said Microsoft in its advisory. How the Active Directory…