CVE-2026-61920

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 48/100
Published: 2026-08-11 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.

Affected Software (12)

VendorProductVersion
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23338
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1809 < 10.0.17763.9121
microsoft windows_10_1809 < 10.0.17763.9121
microsoft windows_11_26h1 < 10.0.28000.2704
microsoft windows_11_26h1 < 10.0.28000.2704
microsoft windows_server_2012 r2
microsoft windows_server_2016 < 10.0.14393.9418
microsoft windows_server_2019 < 10.0.17763.9121
microsoft windows_server_2022 < 10.0.20348.5440
microsoft windows_server_2025 < 10.0.26100.33222

References & Advisories (1)

Bug Bounty Relevance

48 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

6.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.52%
Raw Score 0.005190
Percentile 44.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00519
2026-10-28
0.00519

Intelligence Sources

mitre ref →