CVE-2026-62803

HIGH
MEDIUM Priority: 0.03 BB Relevance: 41/100
Published: 2026-08-11 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to elevate privileges locally.

Affected Software (32)

VendorProductVersion
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5499
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5499
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33296
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1809 < 10.0.17763.9115
microsoft windows_10_1809 < 10.0.17763.9115
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 < 10.0.14393.9418
microsoft windows_server_2019 < 10.0.17763.9115
Showing 30 of 32 entries

References & Advisories (1)

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.37%
Raw Score 0.003700
Percentile 30.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00370
2026-10-28
0.00370

Intelligence Sources

mitre ref →