CVE-2026-0263 HIGH

CVE-2026-0263: PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing

Vendor Palo Alto Networks
Product PAN-OS
Weakness CWE-787
Published May 13, 2026
Last update May 14, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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/AU:Y/R:U/V:C/RE:H/U:Red

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 14, 2026 Record updated