CVE-2023-21554
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
- Record
CVE-2023-21554- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2023-25721
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
- Record
EUVD-2023-25721- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xvhr-xr27-hpmq
Microsoft Message Queuing Remote Code Execution Vulnerability
Microsoft Message Queuing Remote Code Execution Vulnerability
- Record
GHSA-xvhr-xr27-hpmq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
- Record
CVE-2023-21554- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1507
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 20h2
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 21h2
- microsoft windows 11 version 22h2
- microsoft windows server 2008 service pack 2
- microsoft windows server 2008 r2 service pack 1
- microsoft windows server 2008 r2 service pack 1 (server core installation)
- microsoft windows server 2008 service pack 2
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- microsoft windows server 2008 service pack 2 (server core installation)
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows 10 1607
- microsoft windows 10 1809
- microsoft windows 10 20h2
- microsoft windows 10 21h2
- microsoft windows 10 22h2
- microsoft windows 11 21h2
- microsoft windows 11 22h2
- microsoft windows server 2008
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | CVE-2023-21554 - QueueJumper - MSMQ RCE Check | 2023-04-11 |
| PoC in GitHub | 3tternp/CVE-2023-21554 | 2023-08-17 |
| PoC in GitHub | Rahul-Thakur7/CVE-2023-21554 | 2024-12-16 |
| PoC in GitHub | TheArtist54/CVE-2023-21554-PoC | 2026-09-20 |
| PoC in GitHub | leongxudong/MSMQ-Vulnerability | 2025-03-31 |
| PoC in GitHub | shootweb/CVE-2023-21554 | 2025-10-09 |
| PoC in GitHub | zoemurmure/CVE-2023-21554-PoC | 2023-05-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21554 is a critical vulnerability (CVSS 9.8) in Microsoft Windows 10 Version 1507, published April 11, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 95.4%, the 99th percentile. No source names a fixed version.