CVE-2023-21769
HighMicrosoft Message Queuing (MSMQ) Denial of Service Vulnerability
Published Apr 11, 2023 · Updated Feb 28, 2025
Key Facts
Patch immediately- CVE-2023-21769 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Windows 10 1607 (Microsoft), Windows 10 1809 (Microsoft), Windows 10 20h2 (Microsoft) and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 89% probability of exploitation in the next 30 days.
- Fixed versions are available, including Windows 10 1607 10.0.14393.5850, Windows 10 1809 10.0.17763.4252, Windows 10 20h2 10.0.19042.2846.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
89%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2023-21769 brief as a PDF
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Description
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
Affected Products
36 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 1607Microsoft | See advisory | 10.0.14393.5850 |
| Windows 10 1809Microsoft | See advisory | 10.0.17763.4252 |
| Windows 10 20h2Microsoft | See advisory | 10.0.19042.2846 |
| Windows 10 21h2Microsoft | See advisory | 10.0.19044.2846 |
| Windows 10 22h2Microsoft | See advisory | 10.0.19045.2846 |
Patched Releases
Windows 10 1607
10.0.14393.5850
Windows 10 1809
10.0.17763.4252
Windows 10 20h2
10.0.19042.2846
Windows 10 21h2
10.0.19044.2846
Windows 10 22h2
10.0.19045.2846
Windows 11 21h2
10.0.22000.1817
Windows 11 22h2
10.0.22621.1555
Windows 10 Version 1507
10.0.10240.19869
Windows 10 Version 1607
10.0.14393.5850
Windows 10 Version 1809
10.0.17763.4252
Windows 10 Version 20H2
10.0.19042.2846
Windows 10 Version 21H2
10.0.19044.2846
Windows 10 Version 22H2
10.0.19045.2846
Windows 11 version 21H2
10.0.22000.1817
Windows 11 version 22H2
10.0.22621.1555
Windows Server 2008 Service Pack 2
6.0.6003.22015
Windows Server 2008 R2 Service Pack 1
6.1.7601.26466
Windows Server 2008 R2 Service Pack 1 (Server Core installation)
6.1.7601.26466
Windows Server 2008 Service Pack 2 (Server Core installation)
6.0.6003.22015
Windows Server 2012
6.2.9200.24216
Windows Server 2012 (Server Core installation)
6.2.9200.24216
Windows Server 2012 R2
6.3.9600.20919
Windows Server 2012 R2 (Server Core installation)
6.3.9600.20919
Windows Server 2016
10.0.14393.5850
Windows Server 2016 (Server Core installation)
10.0.14393.5850
Timeline
Publicly disclosed
Apr 11, 2023
Last updated
Feb 28, 2025
Weakness Type
- CWE-125 Out-of-bounds Read
References
FAQ
Common Questions.
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
Affected: Windows 10 1607 (Microsoft); Windows 10 1809 (Microsoft); Windows 10 20h2 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Windows 10 1607 10.0.14393.5850, Windows 10 1809 10.0.17763.4252, Windows 10 20h2 10.0.19042.2846.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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