CVE-2026-0263
HIGHPalo Alto Networks PAN-OS 10.2.0-12.1.6 - Unauthenticated Remote Code Execution via IKEv2 Buffer Overflow
Title source: llmDescription
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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://security.paloaltonetworks.com/CVE-2026-0263
Scores
CVSS v4
7.2
EPSS
0.0031
EPSS Percentile
22.4%
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
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (6)
Palo Alto Networks/Cloud NGFW
All
Palo Alto Networks/PAN-OS
10.2.0
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
Palo Alto Networks/PAN-OS
11.2.0 - 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
Palo Alto Networks/Prisma Access
All
Published
May 13, 2026
Tracked Since
May 13, 2026