CVE-2026-0257: PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities
In CISA’s Known Exploited Vulnerabilities catalog: Palo Alto Networks PAN-OS Authentication Bypass Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · CWE-565
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Palo Alto Networks: Cloud NGFWPalo Alto Networks: PAN-OSPalo Alto Networks: Prisma AccessSiemens: RUGGEDCOM APE1808
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- security.paloaltonetworks.com/CVE-2026-0257 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)