Microsoft Word Remote Code Execution Vulnerability

published 2025-04-08 19 mo ago modified 2026-08-10 2 mo ago also EUVD-2025-10131

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

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

Patch / fix

fixed in 5 links 1

Microsoft Microsoft Office LTSC for Mac 2021 16.96.25041326
Microsoft Microsoft Office LTSC for Mac 2024 16.96.25041326
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.5495.1002
Microsoft Microsoft SharePoint Server 2019 16.0.10417.20003
Microsoft Microsoft Word 2016 16.0.5495.1002

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27747 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 19 mo ago (2025-04-08)

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 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 Microsoft SharePoint Enterprise Server 2016
Microsoft Microsoft SharePoint Server 2019
Microsoft Microsoft Word 2016

Classification

Weakness

CWE-822 Untrusted Pointer Dereference

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2025-27747
vendor-advisory, patch

Sources

CVE List CVE-2025-27747
NVD CVE-2025-27747

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.

Summary