CVE-2026-0257

CriticalCVSS 9.1/10Known exploited (CISA KEV)Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-565

Affected software

VendorProductVersions
Palo Alto NetworksCloud NGFW—
Palo Alto NetworksPAN-OS>= 12.1.0, < 12.1.7, 12.1.4-h6; >= 11.2.0, < 11.2.12, 11.2.10-h7, 11.2.7-h14, 11.2.4-h17; >= 11.1.0, < 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33; >= 10.2.0, < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34
Palo Alto NetworksPrisma Access>= 10.2.0, < 10.2.10-h36; >= 11.2.0, < 11.2.7-h13
SiemensRUGGEDCOM APE1808< *

References

Timeline

Published
May 13, 2026
Last modified
Oct 26, 2026
Added to CISA KEV
May 29, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-02589.1A server-side request forgery (SSRF) vulnerability in the IKEv2 implementation of Palo Alto Networks PAN-OS® software allows an unauthenticaCVE-2026-02598.8An arbitrary File Read and Delete Vulnerability in Palo Alto Networks WildFire® WF-500 and WF-500-B appliances enables users to read sensitiCVE-2026-02617.2Multiple command injection vulnerabilities in Palo Alto Networks PAN-OS® software enable an authenticated administrator to bypass system resCVE-2026-02627.5Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cCVE-2026-02639.8A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacCVE-2026-02649.8A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated atCVE-2026-02658.1An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypCVE-2026-02664.8A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store aCVE-2026-02675.5An information exposure vulnerability in the Palo Alto Networks GlobalProtect app on macOS enables a local user to learn the configured passCVE-2026-02684.4A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tuCVE-2026-02695.7A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user toCVE-2026-02707.5A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux allows an unauthenticated attacker on an
CVE-2026-0257: Critical severity, CVSS 9.1 | Vulnix