CVE-2025-21179 json
DHCP Client Service Denial of Service Vulnerability
published last yr. modified 4mo ago also EUVD-2025-2259
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
DHCP Client Service Denial of Service Vulnerability
Patch / fix
- Microsoft Windows 11 Version 24H2 10.0.26100.3194
- Microsoft Windows Server 2025 10.0.26100.3194
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.3194
Is CVE-2025-21179 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
Affected products
- Microsoft Windows 11 Version 24H2
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-21179
vendor-advisory, patch
Sources
- CVE List CVE-2025-21179
- NVD CVE-2025-21179
Fencer Intel 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.