CVE-2026-0264

published 2026-05-13

CVE-2026-0264: A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network…

Priority P3 52 high 7.2 CVSS 4.0

AV N AC H AT N PR N UI N VC H VI H VA H SC L SI L 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 Y R U V C RE H U Red

A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network access to cause a denial of service (DoS) condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code by sending specially crafted network traffic (PA-Series hardware only).

Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
palo_alto_networks	pan-os	>= 10.2.0 < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34	10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34
palo_alto_networks	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	11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33
palo_alto_networks	pan-os	>= 11.2.0 < 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17	11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17
palo_alto_networks	pan-os	>= 12.1.0 < 12.1.7, 12.1.4-h5	12.1.7, 12.1.4-h5
paloalto	cloud_ngfw	—	—
paloalto	pan-os	—	—
paloalto	prisma_access	—	—

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CWE-122