CVE-2025-59240: microsoft 365_apps
CVSS: 5.5v3.1MediumAnalyzed
Published 11-11-2025Last modified 13-02-2026
Vulnerability summary
CVE-2025-59240 is a medium (CVSS 5.5) vulnerability in microsoft 365_apps. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.7% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.64%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-11-2025PublishedVulnerability first disclosed.
- 13-02-2026Last modifiedVulnerability information updated.
Description
Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.64%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.04 pp
From 0.59% on 21-09-2026
21-09-202621-10-2026
EPSS score0.64%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft9 products
- 365_appsna
- excel2016
- microsoft 365 apps for enterprise≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
- microsoft excel 2016≥ 16.0.0.0, < 16.0.5526.1002
- microsoft office 2019≥ 19.0.0, < https://aka.ms/OfficeSecurityReleases
1 vendor · 9 products