Out-of-bounds write in Prisma Access and Palo Alto PAN-OS - CVE-2026-0329
Published: November 12, 2026
Vulnerability identifier: #VU166076
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-0329
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service in Palo Alto Networks PAN-OS and Prisma Access.
The vulnerability exists due to an out-of-bounds write in PAN-OS software when processing network traffic sent to or through a dataplane interface. A remote attacker can send specially crafted network traffic to cause a denial of service. Exposure requires either an active IKE Gateway using certificate-based authentication with CRL or OCSP revocation checking enabled, or a configured and enabled DNS Proxy object on the firewall.
Affected software
Prisma Access
Palo Alto PAN-OS
Palo Alto PAN-OS
How to mitigate CVE-2026-0329
Install security update from vendor's website.
Prisma Access - addressed in versions 10.2.10-h43, 11.2.7-h24, 12.1.10-h4
Palo Alto PAN-OS - addressed in versions 10.2.7-h40, 10.2.10-h43, 10.2.13-h28, 10.2.16-h13, 10.2.18-h14, 11.1.4-h39, 11.1.6-h41, 11.1.7-h13, 11.1.10-h37, 11.1.13-h17, 11.1.16-h5, 11.2.4-h24, 11.2.7-h24, 11.2.10-h18, 11.2.13-h5, 11.2.16-h2, 12.1.4-h14, 12.1.7-h12, 12.1.10-h4, 12.2.4-h2
Palo Alto PAN-OS - addressed in versions 10.2.7-h40, 10.2.10-h43, 10.2.13-h28, 10.2.16-h13, 10.2.18-h14, 11.1.4-h39, 11.1.6-h41, 11.1.7-h13, 11.1.10-h37, 11.1.13-h17, 11.1.16-h5, 11.2.4-h24, 11.2.7-h24, 11.2.10-h18, 11.2.13-h5, 11.2.16-h2, 12.1.4-h14, 12.1.7-h12, 12.1.10-h4, 12.2.4-h2