CVE-2025-21285

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

CVSS 3.1 High 7.5

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

Description

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

Key data

CVSS 3.1 High 7.5

Score published by microsoft in the CVE record.

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

Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: None
No account or privileges are needed.
User interaction: None
No action from any user is needed.
Scope: Unchanged
The impact stays within the vulnerable component.
Confidentiality impact: None
No effect on the secrecy of data.
Integrity impact: None
No effect on the trustworthiness of data.
Availability impact: High
Serious or total effect on availability.

Metric	Value	What it means
Attack vector	Network	The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity	Low	No special conditions are needed. The attack can be repeated at will.
Privileges required	None	No account or privileges are needed.
User interaction	None	No action from any user is needed.
Scope	Unchanged	The impact stays within the vulnerable component.
Confidentiality impact	None	No effect on the secrecy of data.
Integrity impact	None	No effect on the trustworthiness of data.
Availability impact	High	Serious or total effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score: 0.56161 (56.2% probability)
Percentile: 99.1%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA assessment as of Jan 15, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable: yes
Technical impact: partial

Weakness (CWE)

CWE catalog version 5.0.

CWE-476NULL Pointer Dereference

Affected products

Products listed in the CVE record, as the CNA published them.

Microsoft Windows 10 Version 1507
- affected: 10.0.10240.0 up to before 10.0.10240.20890
Microsoft Windows 10 Version 1607
- affected: 10.0.14393.0 up to before 10.0.14393.7699
Microsoft Windows 10 Version 1809
- affected: 10.0.17763.0 up to before 10.0.17763.6775
Microsoft Windows 10 Version 21H2
- affected: 10.0.19044.0 up to before 10.0.19044.5371
Microsoft Windows 10 Version 22H2
- affected: 10.0.19045.0 up to before 10.0.19045.5371
Microsoft Windows 11 version 22H2
- affected: 10.0.22621.0 up to before 10.0.22621.4751
Microsoft Windows 11 version 22H3
- affected: 10.0.22631.0 up to before 10.0.22631.4751
Microsoft Windows 11 Version 23H2
- affected: 10.0.22631.0 up to before 10.0.22631.4751
Microsoft Windows 11 Version 24H2
- affected: 10.0.26100.0 up to before 10.0.26100.2894
Microsoft Windows Server 2008 R2 Service Pack 1
- affected: 6.1.7601.0 up to before 6.1.7601.27520
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected: 6.1.7601.0 up to before 6.1.7601.27520
Microsoft Windows Server 2008 Service Pack 2
- affected: 6.0.6003.0 up to before 6.0.6003.23070
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
- affected: 6.0.6003.0 up to before 6.0.6003.23070
Microsoft Windows Server 2012
- affected: 6.2.9200.0 up to before 6.2.9200.25273
Microsoft Windows Server 2012 (Server Core installation)
- affected: 6.2.9200.0 up to before 6.2.9200.25273
Microsoft Windows Server 2012 R2
- affected: 6.3.9600.0 up to before 6.3.9600.22371
Microsoft Windows Server 2012 R2 (Server Core installation)
- affected: 6.3.9600.0 up to before 6.3.9600.22371
Microsoft Windows Server 2016
- affected: 10.0.14393.0 up to before 10.0.14393.7699
Microsoft Windows Server 2016 (Server Core installation)
- affected: 10.0.14393.0 up to before 10.0.14393.7699
Microsoft Windows Server 2019
- affected: 10.0.17763.0 up to before 10.0.17763.6775
Microsoft Windows Server 2019 (Server Core installation)
- affected: 10.0.17763.0 up to before 10.0.17763.6775
Microsoft Windows Server 2022
- affected: 10.0.20348.0 up to before 10.0.20348.3091
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
- affected: 10.0.25398.0 up to before 10.0.25398.1369
Microsoft Windows Server 2025
- affected: 10.0.26100.0 up to before 10.0.26100.2894
Microsoft Windows Server 2025 (Server Core installation)
- affected: 10.0.26100.0 up to before 10.0.26100.2894

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability (msrc.microsoft.com)vendor-advisorypatch

Timeline

ID reservedDec 10, 2024
Record publishedJan 14, 2025
Record last updatedJun 9, 2026

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:51 UTC. Sources and licenses