CVE-2026-0263
PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing
Description
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.
Weakness: CWE-787
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Palo Alto Networks | Cloud NGFW | Firewall / NGFW | cna-assigner |
| Palo Alto Networks | PAN-OS | Firewall / NGFW | cna-assigner |
| Palo Alto Networks | Prisma Access | SASE / SSE / Secure Web | cna-assigner |
Vendor-reported affected versions (3)
- Palo Alto Networks · Cloud NGFW
- Palo Alto Networks · PAN-OS
- Palo Alto Networks · Prisma Access
Credit
our internal security research teams
Vendor remediation
VERSION MINOR VERSION SUGGESTED SOLUTION Cloud NGFW No action needed. PAN-OS 12.1 12.1.5 through 12.1.6 Upgrade to 12.1.7 or later. 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h5 or 12.1.7 or later. PAN-OS 11.2 11.2.11 or later Upgrade to 11.2.12 or later. 11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h6 or 11.2.12 or later. 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h13 or 11.2.12 or later. 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h17 or 11.2.12 or later. PAN-OS 11.1 11.1.14 or later Upgrade to 11.1.15 or later. 11.1.11 through 11.1.13-h* Upgrade to 11.1.13-h5 or 11.1.15 or later. 11.1.8 through 11.1.10-h* Upgrade to 11.1.10-h25 or 11.1.15 or later. 11.1.7 through 11.1.7-h* Upgrade to 11.1.7-h6 or 11.1.15 or later. 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h32 or 11.1.15 or later. 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h33 or 11.1.15 or later. PAN-OS 10.2 No action needed. Prisma Access No action needed. All older unsupported PAN-OS versions Upgrade to a supported fixed version.