OnlyFm252
Microsoft Office

CVE-2025-21346 — Microsoft Office Security Feature Bypass Vulnerability

Important CVSS 7.8 EPSS 0.00659 2025-01 archive

Executive Summary

None

Overview

7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Security Feature Bypass
Released Jan 14 2025
Last Updated Jan 14 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00659 — 0.46634 percentile
NVD CVSS 7.8 HIGH — differs from MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.2

EPSS Score

0.00659
probability of exploitation in the next 30 days
0.46634 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

8 affected products
Product KB Article Severity Impact Restart Required
Microsoft 365 Apps for Enterprise for 32-bit Systems Click to Run (Security Update) Important Security Feature Bypass No
Microsoft 365 Apps for Enterprise for 64-bit Systems Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office 2016 (32-bit edition) 5002675 (Security Update) 5002595 (Security Update) Important Security Feature Bypass 5002661 5002197 Base: 7.1 Temporal: 6.2 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C 16.0.5483.1001 16.0.5483.1000 Maybe None Microsoft Office 2016 (64-bit edition) 5002675 (Security Update) 5002595 (Security Update) Important Security Feature Bypass 5002661 5002197 Base: 7.1 Temporal: 6.2 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C 16.0.5483.1001 16.0.5483.1000 Maybe None Microsoft Office 2019 for 32-bit editions Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office 2019 for 64-bit editions Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office LTSC 2021 for 32-bit editions Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office LTSC 2021 for 64-bit editions Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office LTSC 2024 for 32-bit editions Click to Run (Security Update) Important Security Feature Bypass No
Microsoft Office LTSC 2024 for 64-bit editions Click to Run (Security Update) Important Security Feature Bypass No

Patches

1 patch
Article Type Restart
Click to Run Security Update No

Known Exploits

Acknowledgments

Anonymous

On This Page