CVE-2026-0269

MEDIUM

PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing

Title source: cna

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://security.paloaltonetworks.com/CVE-2026-0269

Scores

CVSS v4 4.6

EPSS 0.0018

EPSS Percentile 7.9%

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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:A/V:D/RE:M/U:Amber

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-754

Status published

Products (7)

Palo Alto Networks/Cloud NGFW All

Palo Alto Networks/PAN-OS 10.2.0 - 10.2.16-h6

Palo Alto Networks/PAN-OS 11.1.0 - 11.1.6-h21

Palo Alto Networks/PAN-OS 11.2.0 - 11.2.10

Palo Alto Networks/PAN-OS 12.1.0 - 12.1.5

Palo Alto Networks/Panorama All

Palo Alto Networks/Prisma Access All

Published Jun 10, 2026

Tracked Since Jun 11, 2026