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CVE-2026-0257CISA KEV

Palo Alto Networks PAN-OS Authentication Bypass Vulnerability

CISA lists this Palo Alto Networks PAN-OS vulnerability as known exploited. Check the cited references and original publisher guidance for affected products and remediation.

CISA KEVCISA-cited referenceNVD

CISA catalog record

Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.

Product
PAN-OS
Added to KEV
29 May 2026
Federal remediation due
1 Jun 2026
Known ransomware use
Yes
Public detection template
PublicNuclei template · template membership does not establish exploit availability or applicability to your systems.

What changed

  1. Detection template: Nuclei template listed
  2. Detection template: Nuclei template listed
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (16)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeCurrent
  2. 6 Nov 2026 · 17:32:22 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-0257.yaml
  3. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Not collected
  4. 6 Nov 2026 · 16:31:02 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-0257.yaml → No longer listed in this observation
  5. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeCurrent
  6. 2 Nov 2026 · 17:30:39 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-0257.yaml
  7. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Not collected
  8. 2 Nov 2026 · 16:27:39 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-0257.yaml → No longer listed in this observation
  9. 29 Oct 2026 · 20:19:26 UTC Public detection templateNuclei template listed
  10. 29 Oct 2026 · 20:19:26 UTC Link: Vendor advisoryhttps://security.paloaltonetworks.com/CVE-2026-0257 → No longer listed in this observation
  11. 29 Oct 2026 · 20:19:26 UTC Link: CISA-cited referencehttps://security.paloaltonetworks.com/CVE-2026-0257
  12. 28 Oct 2026 · 05:10:29 UTC Public exploit codeNuclei template listed
  13. 28 Oct 2026 · 05:10:29 UTC Source coverage: public-exploit-codeCurrent
  14. 28 Oct 2026 · 05:10:29 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-0257.yaml
  15. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  16. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2026-0257. The catalog has a separate collection scope from Microsoft release records.

Explicit identifiers and source references

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-0257 · Microsoft / collected KEV context

cve-program · CVE-2026-0257

Related operational evidence

Explicit CVE identifiers
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 9 Nov 19:13 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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