Cyber Posture

CVE-2025-21277

High

Published: 14 January 2025

Published
14 January 2025
Modified
27 January 2025
KEV Added
—
Patch
—
CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.3033 96.7th percentile
Risk Priority 33 60% EPSS · 20% KEV · 20% CVSS

Description

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

Security Summary

CVE-2025-21277 is a Denial of Service vulnerability in Microsoft Message Queuing (MSMQ). It has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) and is associated with CWE-126 and NVD-CWE-noinfo. The vulnerability was published on 2025-01-14.

An unauthenticated attacker can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation results in a high impact on availability, enabling denial of service against affected MSMQ instances.

The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21277 provides details on mitigation and patches.

Details

CWE(s)
CWE-126NVD-CWE-noinfo

Affected Products

microsoft
windows 10 1507
≤ 10.0.10240.20890 · ≤ 10.0.10240.20890
microsoft
windows 10 1607
≤ 10.0.14393.7699 · ≤ 10.0.14393.7699
microsoft
windows 10 1809
≤ 10.0.17763.6775 · ≤ 10.0.17763.6775
microsoft
windows 10 21h2
≤ 10.0.19044.5371
microsoft
windows 10 22h2
≤ 10.0.19045.5371
microsoft
windows 11 22h2
≤ 10.0.22621.4751
microsoft
windows 11 23h2
≤ 10.0.22631.4751
microsoft
windows 11 24h2
≤ 10.0.26100.2894
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+5 more product configuration(s) — see NVD for full list

References