CVE-2026-0269

MEDIUMCVSS 5.7/10EPSS 0.22%

Last modified

CVE-2026-0269 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.7/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0
4.6/10

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

EPSS Probability
0.22%

13.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksPan-Os>= 10.2.0, < 10.2.7
PaloaltonetworksPan-Os>= 10.2.8, < 10.2.10
PaloaltonetworksPan-Os>= 10.2.11, < 10.2.13
PaloaltonetworksPan-Os>= 10.2.14, < 10.2.16
PaloaltonetworksPan-Os10.2.7
PaloaltonetworksPan-Os10.2.10
PaloaltonetworksPan-Os10.2.13
PaloaltonetworksPan-Os10.2.16
PaloaltonetworksPan-Os10.2.17
PaloaltonetworksPan-Os>= 11.1.0, < 11.1.4
PaloaltonetworksPan-Os>= 11.1.5, < 11.1.6
PaloaltonetworksPan-Os>= 11.1.7, < 11.1.10
PaloaltonetworksPan-Os11.1.4
PaloaltonetworksPan-Os11.1.6
PaloaltonetworksPan-Os11.1.10
PaloaltonetworksPan-Os11.1.11
PaloaltonetworksPan-Os>= 11.2.0, < 11.2.4
PaloaltonetworksPan-Os>= 11.2.5, < 11.2.7
PaloaltonetworksPan-Os>= 11.2.8, < 11.2.10
PaloaltonetworksPan-Os11.2.4
PaloaltonetworksPan-Os11.2.7
PaloaltonetworksPan-Os>= 12.1.0, < 12.1.4
PaloaltonetworksPan-Os12.1.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2026-0269?
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.
How severe is CVE-2026-0269?
CVE-2026-0269 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-0269?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST