CVE-2026-0263
CRITICALPalo 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 v3
9.8
EPSS
0.0037
EPSS Percentile
30.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (9)
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
paloaltonetworks/pan-os
11.1.4 (21 CPE variants)
paloaltonetworks/pan-os
11.1.6 (19 CPE variants)
paloaltonetworks/pan-os
11.1.7 (4 CPE variants)
Published
May 13, 2026
Tracked Since
May 13, 2026