A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
https://security.paloaltonetworks.com/CVE-2026-0269
https://cert-portal.siemens.com/productcert/html/ssa-967325.html
Published: 2026-06-10
Updated: 2026-07-23
Base Score: 5.5
Vector: CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:C
Severity: Medium
Base Score: 5.7
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00016