CVE-2025-27751 json
Microsoft Excel Remote Code Execution Vulnerability
published 2025-04-08 19 mo ago modified 2026-08-10 2 mo 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
Timeline
- Published
- First public exploit (EDB-52332)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 19 mo ago
Exploit prediction
2.53% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
- CWE-416 Use After Free
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-27751
vendor-advisory, patch
Sources
- CVE List CVE-2025-27751
- NVD CVE-2025-27751
Fencer Vulns 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.