Obsidian Ridge
CVE-2023-36761MEDIUM · 6.5Patch fourth

Microsoft Word Information Disclosure Vulnerability

CVE-2023-36761 is a security vulnerability in Microsoft Word, added to CISA KEV on September 12, 2023. Patch order: fourth of four.

Added to CISA KEV · Updated · Microsoft Word

What is CVE-2023-36761?

Microsoft Word contains an unspecified vulnerability that allows for information disclosure.

Who is affected by CVE-2023-36761?

Affects anyone running Microsoft Word. Microsoft products in a small practice typically sit close to credentials, email, or document workflows — treat the patch as in-scope.

What should I do about CVE-2023-36761?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

If you don't have someone in-house to verify the patch deployed across every endpoint — or you're not sure whether you're affected — that's exactly the kind of triage we do. Talk with us.

Insurance readiness

Your insurer will ask if this is patched.

Unpatched entries on CISA's Known Exploited Vulnerabilities list are exactly what cyber-insurance carrier questionnaires probe for, and knowing which controls they check is how you keep a renewal from stalling.

Get the free carrier questionnaire →

Severity

CVSS base score: 6.5 — MEDIUM

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness classification: CWE-20

CVSS, severity, and CWE data from the National Vulnerability Database (NVD). This product uses data from the NVD API but is not endorsed or certified by the NVD.

Microsoft fix

  • Click to Run (Security Update)
  • KB5002497 (Security Update)
  • KB5002483 (Security Update)

Microsoft Exploitability Index (assessed at update release): Exploitation Detected

Microsoft has confirmed in-the-wild exploitation in the latest software release. This aligns with CISA's listing of this CVE.

Sourced from Microsoft Security Update Guide (CVRF document 2023-Sep).

Vendor workaround

No vendor workaround published. Patching is the only fix.

Shown as published by Microsoft (Security Update Guide, CVRF document 2023-Sep); formatting sanitized, content unaltered.

CISA due date

CISA's listed due date: October 3, 2023.

Federal civilian agencies work under CISA's Binding Operational Directive 26-04, which replaced BOD 22-01 on June 10, 2026. It sets the deadline for each affected system by:

  • How exposed that system is to the internet
  • Whether the attack can be automated
  • How much control it gives an attacker

Its table gives catalogued vulnerabilities 3 or 14 days.

None of this binds a private business, but treat the date as a strong recommendation, especially if you handle regulated data (HIPAA, GLBA, ABA model rules).

EPSS

EPSS score: 19.6% — higher than 97% of all scored CVEs.

EPSS estimates the probability of exploitation activity in the next 30 days. Every entry on this site is already confirmed exploited, so read it as relative urgency among the things you still have open, not as permission to wait.

Score dated 2026-10-07, from the FIRST.org Exploit Prediction Scoring System.

Other exploited Microsoft Word entries

More CISA KEV entries for Microsoft Word. Same product line, same actively-exploited status.

Source

This entry comes from CISA's Known Exploited Vulnerabilities catalog, public US-Government data we pull daily. The plain-language framing and the what-to-do guidance above are ours. View the original entry on cisa.gov.

Weekly digest

Get the weekly digest in your inbox.

Drop your email and we send you what changed in your watch each week. If nothing changed, we tell you that too.

Watching: Microsoft