Skip to content
Fencer Intel
high 7.8

CVE-2025-27751 json

Microsoft Excel Remote Code Execution Vulnerability

published last yr. modified 2mo ago also EUVD-2025-10135

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
1
Exploit-DB

Summary

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Patch / fix

  • Microsoft Microsoft Excel 2016 16.0.5495.1000
  • Microsoft Microsoft Office LTSC for Mac 2021 16.96.25041326
  • Microsoft Microsoft Office LTSC for Mac 2024 16.96.25041326
  • Microsoft Office Online Server 16.0.10417.20003

Is CVE-2025-27751 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Timeline

  1. Published
  2. First public exploit (EDB-52332)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

2.53% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52332 Microsoft Excel Use After Free - Local Code Execution local, 2025-06-15

CVSS scores

assigned by version score vector
CNA 3.1 7.8 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
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft 365 Apps for Enterprise
  • Microsoft Microsoft Excel 2016
  • Microsoft Microsoft Office 2019
  • Microsoft Microsoft Office LTSC 2021
  • Microsoft Microsoft Office LTSC 2024
  • Microsoft Microsoft Office LTSC for Mac 2021
  • Microsoft Microsoft Office LTSC for Mac 2024
  • Microsoft Office Online Server

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.