Cyber Resilience

CVE-2025-50177

High

Published: 12 August 2025

Published
12 August 2025
Modified
19 August 2025
KEV Added
Patch
CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0092 76.5th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-50177 is a high-severity Race Condition (CWE-362) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 23.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 CM-7 (Least Functionality) and SI-16 (Memory Protection).

Deeper analysis

CVE-2025-50177 is a use-after-free vulnerability (CWE-416) in Windows Message Queuing, also associated with CWE-362 (concurrent execution using shared resource with improper synchronization). Published on 2025-08-12, it carries a CVSS v3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating high severity with network accessibility, high attack complexity, no required privileges or user interaction, unchanged scope, and high impacts on confidentiality, integrity, and availability.

An unauthorized attacker with network access can exploit this vulnerability remotely. The high attack complexity suggests sophisticated techniques are needed, but successful exploitation allows arbitrary code execution on the target system without privileges or user involvement.

Mitigation details are available in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-50177.

EU & UK References

Vulnerability details

Use after free in Windows Message Queuing allows an unauthorized attacker to execute code over a network.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Why these techniques?

Use-after-free in network-accessible Windows Message Queuing service directly enables remote unauthenticated arbitrary code execution (T1190: Exploit Public-Facing Application).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2025-21368Same product: Microsoft Windows 10 1507
CVE-2025-21220Same product: Microsoft Windows 10 1507
CVE-2025-21298Same product: Microsoft Windows 10 1507
CVE-2025-21294Same product: Microsoft Windows 10 1507
CVE-2025-21307Same product: Microsoft Windows 10 1507
CVE-2025-21369Same product: Microsoft Windows 10 1507
CVE-2025-53766Same product: Microsoft Windows 10 1507
CVE-2025-62549Same product: Microsoft Windows 10 1607
CVE-2026-20868Same product: Microsoft Windows 10 1607
CVE-2025-47981Same product: Microsoft Windows 10 1507

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.21100 · ≤ 10.0.10240.21100
microsoft
windows 10 1607
≤ 10.0.14393.8330 · ≤ 10.0.14393.8330
microsoft
windows 10 1809
≤ 10.0.17763.7678 · ≤ 10.0.17763.7678
microsoft
windows 10 21h2
≤ 10.0.19044.6216
microsoft
windows 10 22h2
≤ 10.0.19045.6216
microsoft
windows 11 22h2
≤ 10.0.22621.5768
microsoft
windows 11 23h2
≤ 10.0.22631.5768
microsoft
windows 11 24h2
≤ 10.0.26100.4851
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+5 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

prevent

SI-2 Flaw Remediation requires timely patching of the specific use-after-free vulnerability in Windows Message Queuing to eliminate remote code execution risk.

prevent

SI-16 Memory Protection deploys runtime mitigations such as ASLR and DEP to directly counter exploitation of use-after-free memory corruption in Windows Message Queuing.

prevent

CM-7 Least Functionality prohibits or restricts unnecessary network-exposed services like Windows Message Queuing to prevent unauthorized remote access and exploitation.

References