CVE-2026-85865

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 36/100
Published: 2026-10-13 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: High
A: None

Description

Improper authentication in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.

Affected Software (26)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33650

References & Advisories (1)

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.29%
Raw Score 0.002880
Percentile 21.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00288
2026-10-28
0.00288

Intelligence Sources

mitre ref →