Critical9.2Vendor: HighPalo Alto Networks

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

This critical-severity Palo Alto Networks advisory covers CVE-2026-0263 affecting PAN-OS.

CVE-2026-0263 Published May 28, 2026

CVE-2026-0263

Affected products & platforms

Palo Alto NetworksPAN-OSFirewallPAN-OS / Panorama

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Summary

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

Affected versions

PAN-OS 12.1: < 12.1.4-h5< 12.1.7
PAN-OS 11.2: < 11.2.4-h17< 11.2.7-h13< 11.2.10-h6< 11.2.12
PAN-OS 11.1: < 11.1.4-h33< 11.1.6-h32< 11.1.7-h6< 11.1.10-h25< 11.1.13-h5< 11.1.15

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

PAN-OS >= 12.1.7
PAN-OS >= 12.1.4-h5
PAN-OS >= 11.2.12
PAN-OS >= 11.2.10-h6
PAN-OS >= 11.2.7-h13
PAN-OS >= 11.2.4-h17
PAN-OS >= 11.1.15
PAN-OS >= 11.1.13-h5
PAN-OS >= 11.1.10-h25
PAN-OS >= 11.1.7-h6
PAN-OS >= 11.1.6-h32
PAN-OS >= 11.1.4-h33

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

All older unsupported PAN-OS versions Upgrade to a supported fixed version.

Temporary workarounds

Customers using IKEv2 VPN can mitigate this issue by configuring IKEv2 VPN tunnels only with NIST approved Post Quantum Cryptography (PQC) ciphers.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Palo Alto Networks Security Advisoriesofficial
Official vendor feed — the source of truth for this advisory. VulniPulse polled this feed and parsed this entry from it. Discovered from the machine-readable feed https://security.paloaltonetworks.com/rss.xml; this link opens the Palo Alto Networks advisory index instead of the raw feed document.
Palo Alto Networks
Vendor advisory pageofficial
Advisory page fetched and parsed to extract affected/fixed versions and mitigation guidance beyond what the feed carries.
Palo Alto Networks

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-0263NVD CVE.org MITRE

Official resources

PAN-OS / Panorama upgrade guide (target: 12.1.7 / 12.1.4-h5 / 11.2.12)
Official documentation
This advisory names 12.1.7 / 12.1.4-h5 / 11.2.12 as the first fixed releases — official upgrade documentation for PAN-OS firewalls and Panorama.
Palo Alto Networks Security Advisories portal
Official documentation
Canonical advisory portal — check here for the latest revision of this advisory and affected-version updates.

Discussion(0)

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