🛡️ CVE-2025-21361 — office

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-641 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Microsoft Outlook Remote Code Execution Vulnerability

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-21361 is classified as CWE-641: Improper Restriction of Names for Files and Other Resources. The product constructs the name of a file or other resource using input from an upstream component, but it does not restrict or incorrectly restricts the resulting name.

Affected software

CVE-2025-21361 is recorded against 3 packages.

  • office
  • office-long-term-servicing-channel
  • outlook (fixed in 16.93)

Timeline and source

Published on 14 January 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-641
Public Exploit ✅ No
Source NVD
Published 2025-01-14
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
office — —
office-long-term-servicing-channel — —
outlook — 16.93

Similar Threats

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CVE-2025-21361 is rated CVSS 7.8 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

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