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CISA Known Exploited Vulnerability

This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.

CVE

CVE-2026-0257

7.8

CVSShigh

Exploitable remotely over the internet · no authentication required.

Description

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues.

Attack Vector

Network

Privileges Req.

None

User Interaction

None

cloud ngfwpan-osprisma accessruggedcom ape1808

Updated Nov 10, 2026View on NVD →

S4E scanner

criticalNetwork Vulnerabilities~10 seconds

Palo Alto Networks PAN-OS - Authentication Bypass

Palo Alto Networks PAN-OS contains an authentication bypass caused by flaws in the GlobalProtect portal and gateway, letting attackers establish unauthorized VPN connections, exploit requires network access to the portal or gateway. References: https://security.paloaltonetworks.com/CVE-2026-0257 https://www.rapid7.com/blog/post/etr-rapid7-observed-exploitation-of-pan-os-globalprotect-authentication-bypass-vulnerability-cve-2026-0257/ https://github.com/sfewer-r7/CVE-2026-0257 Remediation: Update to the latest PAN-OS version that addresses GlobalProtect authentication bypass.

Used 18 times · 9 assets checked · domain, subdomain, ipv4

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CVE history: cloud ngfw

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