CVE-2026-65785 json
Windows DHCP Client Denial of Service Vulnerability
published 2026-08-11 2 mo ago modified 2026-10-30 9 d ago also EUVD-2026-56439
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Uncontrolled resource consumption in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.
Patch / fix
- Microsoft Windows 11 Version 24H2 10.0.26100.9168
- Microsoft Windows 11 Version 25H2 10.0.26200.9168
- Microsoft Windows 11 version 26H1 10.0.28000.2704
- Microsoft Windows Server 2025 10.0.26100.33296
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.33296
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Microsoft Windows 11 Version 24H2
- Microsoft Windows 11 Version 25H2
- Microsoft Windows 11 version 26H1
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-65785
vendor-advisory, patch
Sources
- CVE List CVE-2026-65785
- NVD CVE-2026-65785
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