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Critical severity9.8NVD Advisory· Published May 13, 2026· Updated Jul 14, 2026

CVE-2026-0263

CVE-2026-0263

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

95
  • Paloaltonetworks/Pan OS95 versions
    cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*+ 94 more
    • cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*range: >=11.1.0,<11.1.4
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h10:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h12:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h21:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h5:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h7:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.10:h9:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.13:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.13:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.13:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.13:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.14:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h10:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h11:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h12:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h13:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h15:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h16:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h17:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h18:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h25:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h27:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h32:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h5:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h6:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h7:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h8:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.4:h9:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h10:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h14:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h17:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h18:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h19:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h20:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h21:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h22:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h23:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h25:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h29:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h5:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h6:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.6:h7:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.1.7:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.10:h5:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.11:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h10:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h11:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h12:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h14:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h15:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h5:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h6:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h7:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h8:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.4:h9:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h10:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h11:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h12:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h1:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h3:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h4:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h7:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:11.2.7:h8:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:12.1.4:-:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:12.1.4:h2:*:*:*:*:*:*
    • cpe:2.3:o:paloaltonetworks:pan-os:12.1.4:h3:*:*:*:*:*:*
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

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