# CVE-2026-0257: PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities

> CVE-2026-0257: PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities. CVSS 9.1 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-0257
Last updated: 2026-10-15T01:11:26Z

- Published: 2026-05-13 18:15 UTC · Updated: 2026-10-15 01:11 UTC · Assigner: palo\_alto
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS: 95.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-05-29, federal due date 2026-06-01, ransomware use: Known
- CWE: CWE-565

## 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.

## CISA 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.

## Affected vendors and products

- Palo Alto Networks: Cloud NGFW
- Palo Alto Networks: PAN-OS
- Palo Alto Networks: Prisma Access
- Siemens: RUGGEDCOM APE1808

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-0257)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-0257)
- [https://security.paloaltonetworks.com/CVE-2026-0257](https://security.paloaltonetworks.com/CVE-2026-0257)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-0257 · Markdown: https://rewindex.com/cve/CVE-2026-0257.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-0257 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:28.402Z