Paper/Archive/CVE-2026-0263

CVE-2026-0263

Palo Alto Networks Cloud NGFW — PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing

Description · from the CVE record

A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition. Panorama, Cloud NGFW, and Prisma® Access are not impacted by these vulnerabilities.

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
Prisma Accesssee advisoryAllCNA

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

References

advisorysecurity.paloaltonetworks.com/CVE-2026-0263