CVE-2025-21350: microsoft windows_10_1507 Improper Input Validation
CVSS: 5.9v3.1MediumAnalyzed
Published 11-02-2025Last modified 13-02-2026
Vulnerability summary
CVE-2025-21350 is a medium (CVSS 5.9) Improper Input Validation vulnerability in microsoft windows_10_1507. EPSS estimates a 2.15% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)EPSS score
2.15%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-02-2025PublishedVulnerability first disclosed.
- 13-02-2026Last modifiedVulnerability information updated.
Description
Windows Kerberos Denial of Service Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.15%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
0.00 pp
From 2.15% on 21-09-2026
21-09-202621-10-2026
EPSS score2.15%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft35 products
- windows_10_1507< 10.0.10240.20915
- windows_10_1607< 10.0.14393.7785
- windows_10_1809< 10.0.17763.6893
- windows_10_21h2< 10.0.19044.5487
- windows_10_22h2< 10.0.19045.5487
1 vendor · 35 products
