Stack-based buffer overflow in Palo Alto PAN-OS - CVE-2026-0318
Published: October 15, 2026
Vulnerability identifier: #VU155830
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-0318
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a stack-based buffer overflow in the log processing functionality of PAN-OS on Panorama when processing logs. A remote attacker can trigger the vulnerable log processing functionality over the network to cause a denial of service.
Exposure requires Panorama in panorama system-mode, or management-only mode with a Log Collector, with a Collector Group configured.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2026-0318
Install security update from vendor's website.
Palo Alto PAN-OS - addressed in versions 11.1.4-h37, 11.1.6-h39, 11.1.7-h11, 11.1.10-h35, 11.1.13-h15, 11.1.16-h3, 11.2.4-h22, 11.2.7-h21, 11.2.10-h15, 11.2.13-h3, 11.2.15, 12.1.4-h12, 12.1.7-h8, 12.1.10-h2, 12.2.4