by Kastro CVE-2026-0264
Palo Alto Networks Cloud NGFW — PAN-OS: Heap-Based Buffer Overflow in DNS Proxy and DNS Server Allows Unauthenticated Remote Code Execution
Description · from the CVE record
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
ProductAffectedFixed inSource
Cloud NGFWsee advisoryAllCNA
PAN-OS12.1.0 – < 12.1.7, 12.1.4-h512.1.7, 12.1.4-h5CNA
PAN-OS11.2.0 – < 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h1711.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17CNA
PAN-OS11.1.0 – < 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h3311.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33CNA
PAN-OS10.2.0 – < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h3410.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34CNA
Prisma Accesssee advisoryAllCNA
RUGGEDCOM APE1808all versions–siemens-SADP
Scores by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
palo_alto (CNA)7.2CVSS: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/AU:Y/R:U/V:C/RE:H/U:Red
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total