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Attackers exploit Palo Alto GlobalProtect flaw days after disclosure

A Palo Alto Networks vulnerability that allows attackers to establish unauthorized VPN access into corporate networks is being actively exploited in the wild, weeks after the company disclosed the flaw as a medium-severity issue and said it was unaware of any attacks. However, according to Rapid7, threat actors began exploiting the bug within days of…

Hackers are exploiting Palo Alto GlobalProtect VPN authentication bypass (CVE-2026-0257)

Authentication bypass vulnerabilities (CVE-2026-0257) in Palo Alto Networks’ firewalls that the company disclosed on May 13 have been targeted in “limited exploit attempts”. “Across multiple customers, Rapid7 observed successful exploitation via authentication probes using forged cookies, but the appliance accepted the cookie without a full VPN session being established in 8 out of 10 impacted…

U.S. CISA adds Palo Alto Networks PAN-OS flaw to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Palo Alto Networks PAN-OS flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Palo Alto Networks PAN-OS flaw, tracked as CVE-2026-0257 (CVSS score of 7.8), to its Known Exploited Vulnerabilities (KEV) catalog. Palo Alto Networks addressed the vulnerability CVE-2026-0257 on May…

CVE-2026-0257: Rapid7 Caught Attackers Abusing Forged VPN Cookies Against Multiple Customers

CVE-2026-0257 lets attackers forge Palo Alto GlobalProtect auth cookies and bypass VPN login. Exploitation confirmed since May 17. Palo Alto Networks addressed the vulnerability CVE-2026-0257 on May 13. Two weeks later, cybersecurity firm Rapid7 confirmed active exploitation across multiple customer environments. The flaw impacts the GlobalProtect portal and gateway components of Palo Alto Networks PAN-OS…

PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation

Palo Alto Networks has warned that a recently disclosed medium-severity security flaw impacting PAN-OS and Prisma Access has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-0257 (CVSS score: 7.8), refers to a case of authentication bypass that could be exploited by bad actors to set up VPN connections. “Authentication bypass vulnerabilities…

Palo Alto bets on identity security for autonomous AI with Idira launch

Palo Alto Networks has launched Idira, a new identity security platform aimed at securing human users, machine identities, and AI agents amid the rising adoption of autonomous AI systems amongst enterprises. The company is positioning Idira as a next-generation identity security platform that goes beyond traditional privileged access management (PAM) systems by applying dynamic privilege…

Palo Alto Networks Targets AI Identity Risks with Idira

Palo Alto Networks is expanding its identity security business with the launch of Idira, a platform designed to secure human users, machine identities, and autonomous AI agents as enterprises face growing identity-related cyber risk.  The company also named Oracle veteran Sonny Singh to lead the business, signaling a broader push around identity security for AI-driven…

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…

Nation-state actors exploit Palo Alto PAN-OS zero-day for weeks

Palo Alto says hackers exploited PAN-OS zero-day CVE-2026-0300 for weeks, gaining root access to exposed firewalls and hiding traces. Palo Alto Networks warned that suspected state-sponsored hackers have been exploiting the critical PAN-OS zero-day CVE-2026-0300 for nearly a month. After exploiting the flaw, attackers deployed tunneling tools such as EarthWorm and ReverseSocks5, used stolen credentials…

PAN-OS RCE Exploit Under Active Use Enabling Root Access and Espionage

Palo Alto Networks has disclosed that threat actors may have attempted to unsuccessfully exploit a recently disclosed critical security flaw as early as April 9, 2026. The vulnerability in question is CVE-2026-0300 (CVSS score: 9.3/8.7), a buffer overflow vulnerability in the User-ID Authentication Portal service of Palo Alto Networks PAN-OS software that could allow an…

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…

Critical Palo Alto Networks software bug hits exposed firewalls

Palo Alto Networks is warning customers about a critical buffer overflow vulnerability affecting its PAN-OS user-ID authentication portal that is already being exploited in the wild. The flaw allows attackers to execute arbitrary code with root privileges on exposed firewalls, the company said in a security advisory. PAN-OS is the software that runs all Palo…

U.S. CISA adds a flaw in Palo Alto Networks PAN-OS to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Palo Alto Networks PAN-OS to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in the Palo Alto Networks PAN-OS, tracked as CVE-2026-0300 (CVSS score of 9.3), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a buffer…

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…

Palo Alto Networks PAN-OS flaw exploited for remote code execution

Palo Alto Networks warns of a critical PAN-OS flaw (CVE-2026-0300) that is under active attack, allowing unauthenticated remote code execution. Palo Alto Networks has warned that a critical PAN-OS vulnerability, tracked as CVE-2026-0300 (CVSS score of 9.3), is actively exploited in the wild. The flaw is a buffer overflow that allows unauthenticated remote code execution,…

Palo Alto PAN-OS Flaw Under Active Exploitation Enables Remote Code Execution

Palo Alto Networks has released an advisory warning that a critical buffer overflow vulnerability in its PAN-OS software has been exploited in the wild. The vulnerability, tracked as CVE-2026-0300, has been described as a case of unauthenticated remote code execution. It carries a CVSS score of 9.3 if the User-ID Authentication Portal is configured to…

Palo Alto’s Helmut Reisinger sees a cyber sea change ahead as AI advances

In two decades, Palo Alto Networks has evolved from a next-generation niche player to one of the largest global cybersecurity giants today. Under its mantra of “platformization,” the company has catapulted its revenues over its closest competitors and boosted its stock valuation to over $130 billion. No stranger to AI use in cybersecurity, Palo Alto recently announced…

Palo Alto Networks’ Prisma AIRS 3.0 closes visibility gaps in autonomous AI systems

Palo Alto Networks has advanced its AI security platform with Prisma AIRS 3.0, securing the agentic AI lifecycle and enabling enterprises to move from observation to safe autonomous execution. The shift toward an AI-powered enterprise introduces systemic security challenges, ranging from unmanaged shadow AI to the critical new frontiers of agentic identity, runtime security, and…

Palo Alto updates security platform to discover AI agents

As CISOs worry about AI agent sprawl, Palo Alto Networks has announced an update to its Prisma AIRS security platform and enterprise browser to include the ability to discover AI agents, models, and connections across the entire IT environment, to scan agents for vulnerabilities, and to allow admins to simulate red team tests for agents.…

Palo Alto Networks’ Koi acquisition is all about keeping AI agents in check

Palo Alto Networks announced Tuesday its plans to buy security startup Koi, a deal aimed at addressing the security risks emerging as organizations rapidly adopt agentic AI. Terms were not disclosed, but Israeli business outlet Globes reported that Palo Alto will pay approximately $400 million. The deal is another among a trend of larger cybersecurity…

Palo Alto Networks intends to acquire Koi, advancing agentic endpoint security

Palo Alto Networks has entered into a definitive agreement to acquire Koi, giving enterprises the power to finally see and protect the AI-native ecosystem that defines modern work. The new imperative: Agentic endpoint security Traditional security was built to stop malicious files, but AI agents and tools can actively read, write, and move data. Attackers…

Unit 42: Nearly two-thirds of breaches now start with identity abuse

Identity is still the primary entry point for cyberattacks, according to Palo Alto Networks’ threat intelligence firm Unit 42. In its annual incident response report released Tuesday, Unit 42 found that identity-based techniques accounted for nearly two-thirds of all initial network intrusions last year.  Social engineering was the leading attack method, accounting for one-third of…

Palo Alto closes privileged access gap with $25B CyberArk acquisition

Cybersecurity company Palo Alto Networks has completed its $25 billion acquisition of Israel-based identity security firm CyberArk, bringing privileged access and identity security into the core of its platform strategy. With this acquisition, Palo Alto aims to extend privileged access controls across human, machine, and AI identities, reduce standing privileges, limit lateral movement, and stop…

Palo Alto Networks Revamps NextWave Partner Program

Palo Alto Networks is rolling out a redesigned NextWave Partner Program that reflects how AI and platform-driven security are reshaping partner economics, according to the company. The update moves incentives beyond pure sales volume toward platform adoption, service delivery, and AI-enabled security outcomes, as Palo Alto Networks seeks to align partner growth with enterprise demand…

CVE-2026-20045: Critical Zero-Day in Cisco Products Is Actively Exploited in the Wild

Hot on heels of the DoS vulnerability in Palo Alto Networks’ GlobalProtect (CVE-2026-0227), security professionals are facing another major challenge. This time, Cisco announced that several of its unified communications products are affected by a critical remote code execution (RCE) vulnerability. If successfully exploited, the flaw enables hackers to execute malicious commands on the underlying…

CVE-2026-20045: Critical Zero-Day in Cisco Products Is Actively Exploited in the Wild

Hot on heels of the DoS vulnerability in Palo Alto Networks’ GlobalProtect (CVE-2026-0227), security professionals are facing another major challenge. This time, Cisco announced that several of its unified communications products are affected by a critical remote code execution (RCE) vulnerability. If successfully exploited, the flaw enables hackers to execute malicious commands on the underlying…

CVE-2026-20045: Critical Zero-Day in Cisco Products Is Actively Exploited in the Wild

Hot on heels of the DoS vulnerability in Palo Alto Networks’ GlobalProtect (CVE-2026-0227), security professionals are facing another major challenge. This time, Cisco announced that several of its unified communications products are affected by a critical remote code execution (RCE) vulnerability. If successfully exploited, the flaw enables hackers to execute malicious commands on the underlying…

CVE-2026-20045: Critical Zero-Day in Cisco Products Is Actively Exploited in the Wild

Hot on heels of the DoS vulnerability in Palo Alto Networks’ GlobalProtect (CVE-2026-0227), security professionals are facing another major challenge. This time, Cisco announced that several of its unified communications products are affected by a critical remote code execution (RCE) vulnerability. If successfully exploited, the flaw enables hackers to execute malicious commands on the underlying…