Buffer Overflow Vulnerability in Palo Alto Networks PAN-OS DNS Features
CVE-2026-0264

6.6MEDIUM

Key Information:

Vendor

Palo Alto Networks
Status
Cloud Ngfw
Pan-os
Prisma Access
Vendor
CVE Published:
13 May 2026

Badges

👾 Exploit Exists

What is CVE-2026-0264?

A vulnerability exists in the DNS proxy and DNS Server functionalities of Palo Alto Networks PAN-OS® Software, which allows unauthorized attackers with network access to disrupt service or potentially execute arbitrary code by sending specially crafted network traffic. This affects all PAN-OS platforms, except for Cloud NGFW and Prisma Access, alongside PA-Series hardware. Proper updates and patches are advised for safeguarding against potential threats.

Affected Version(s)

PAN-OS 12.1.0 < 12.1.7, 12.1.4-h5

PAN-OS 11.2.0 < 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17

PAN-OS 11.1.0 < 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33

References

https://security.paloaltonetworks.com/CVE-2026-0264
vendor-advisory

CVSS V4

Score:
6.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Palo Alto Networks thanks an external reporter and our internal security research teams for discovering and reporting this issue.
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