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Recorded 13 Nov 2026 at 12:10 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.

CVECISA Known Exploited Vulnerabilities

Microsoft SharePoint Weak Authentication Vulnerability

Microsoft SharePoint contains a weak authentication vulnerability which allows an unauthorized attacker to bypass a security feature over a network.

What it said

CVE
CVE-2026-55040
Vendor
Microsoft
Product
SharePoint
CISA KEV
Listed 18 Aug 2026
Known ransomware use
Not stated
Federal remediation due
21 Aug 2026
Public detection template
Nuclei template listed
Public exploit code
Nuclei template listed

Source evidence when recorded

CISA KEV
Complete at observationRead 13 Nov 2026 at 12:08 UTC
Public detection templates (Nuclei)
Complete at observationRead 13 Nov 2026 at 12:08 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

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 (12)

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

  1. 13 Nov 2026 · 12:10:20 UTC Source coverage: public-exploit-codeIncomplete → Current
  2. 13 Nov 2026 · 11:07:20 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  3. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  4. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  5. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  6. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  7. 29 Oct 2026 · 20:19:26 UTC Public detection templateNuclei template listed
  8. 28 Oct 2026 · 05:10:29 UTC Public exploit codeNuclei template listed
  9. 28 Oct 2026 · 05:10:29 UTC Source coverage: public-exploit-codeCurrent
  10. 28 Oct 2026 · 05:10:29 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-55040.yaml
  11. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  12. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
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 15 Nov 23:13 UTC · 274 of 275 readable · 250 fully read · 18 waiting for GitHub's hourly limit · documentation 461/469 current

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