CVE-2025-29816: microsoft 365_apps
CVSS: 7.5v3.1HighAnalyzed
Published 08-04-2025Last modified 10-08-2026
Vulnerability summary
CVE-2025-29816 is a high (CVSS 7.5) vulnerability in microsoft 365_apps. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.47%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-04-2025PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.01 pp
From 0.46% on 19-09-2026
19-09-202619-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft12 products
- 365_appsna
- microsoft 365 apps for enterprise≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
- microsoft office 2016≥ 16.0.0, < 16.0.5495.1002
- microsoft office 2019≥ 19.0.0, < https://aka.ms/OfficeSecurityReleases
- microsoft office ltsc 2021≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
1 vendor · 12 products