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CVE-2025-21270

HIGHCVSS 7.5/10EPSS 2.31%

Last modified

CVE-2025-21270 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

Description

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 10 1507< 10.0.10240.20890—
MicrosoftWindows 10 1607< 10.0.14393.7699—
MicrosoftWindows 10 1809< 10.0.17763.6775—
MicrosoftWindows 10 21h2< 10.0.19044.5371—
MicrosoftWindows 10 22h2< 10.0.19045.5371—
MicrosoftWindows 11 22h2< 10.0.22621.4751—
MicrosoftWindows 11 23h2< 10.0.22631.4751—
MicrosoftWindows 11 24h2< 10.0.26100.2894—
MicrosoftWindows Server 2008All versionsSp2
MicrosoftWindows Server 2008r2Sp1
MicrosoftWindows Server 2012All versions—
MicrosoftWindows Server 2012r2—
MicrosoftWindows Server 2016< 10.0.14393.7699—
MicrosoftWindows Server 2019< 10.0.17763.6775—
MicrosoftWindows Server 2022< 10.0.20348.3091—
MicrosoftWindows Server 2022 23h2< 10.0.25398.1369—
MicrosoftWindows Server 2025< 10.0.26100.2894—

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-21270?
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
How severe is CVE-2025-21270?
CVE-2025-21270 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.
How do I fix CVE-2025-21270?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21270?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST