Out-of-bounds write in Palo Alto PAN-OS - CVE-2026-0326
Published: November 12, 2026
Vulnerability identifier: #VU166078
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-0326
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disrupt service processing by causing a service process crash or memory corruption in Palo Alto Networks PAN-OS.
The vulnerability exists due to an out-of-bounds write in PAN-OS protocol and service processing when handling network traffic with SCTP enabled, a DNS proxy object configured and enabled, or OSPFv3 routing enabled on an IPv6 interface. A remote attacker can send specially crafted network traffic to cause a service process crash or memory corruption.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2026-0326
Install security update from vendor's website.
Palo Alto PAN-OS - addressed in versions 11.1.16-h5, 11.2.16-h2, 12.1.10-h4, 12.2.4-h2