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CVE-2026-0263

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3363222bd11c471fa9078d63f020f67ffa351aee1f8bedf50b278f6e24f17d25
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/0

{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:-:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h4:*:*:*:*…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/2

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/0
{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:-:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h4:*:*:*:*…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"YES","Recovery":"USER","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.2,"baseSeverity":"HIGH","exploitMaturity":"UNREPORTED","privilegesRequired":"NONE","providerUrgency":"RED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"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/AU:Y/R:U/V:C/RE:H/U:Red","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://security.paloaltonetworks.com/CVE-2026-0263"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eab9ea68bc42e2ec5a9b135ccaea3b09d834ef5df9e5b76a4a3a7a1c52f5b605 · sha256:3862e0ca1ad0ab10… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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