What is GHSA-xqxf-q4xj-jxh3?

GHSA-xqxf-q4xj-jxh3 is a security advisory published by GitHub Security Advisories with High severity. A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software...

Which CVE IDs does GHSA-xqxf-q4xj-jxh3 cover?

GHSA-xqxf-q4xj-jxh3 covers the following CVE IDs: CVE-2026-0263. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xqxf-q4xj-jxh3?

GHSA-xqxf-q4xj-jxh3 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-xqxf-q4xj-jxh3HighCVSS 9.8

A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software...

Vendor

GitHub Security Advisories

Published

May 13, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-0263 →

📋 Description

A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition.

Panorama, Cloud NGFW, and Prisma® Access are not impacted by these vulnerabilities.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-0263
https://security.paloaltonetworks.com/CVE-2026-0263
https://github.com/advisories/GHSA-xqxf-q4xj-jxh3