CVE-2023-21554 Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Attackers can execute arbitrary code remotely via Microsoft Message Queuing, requiring immediate patching on affected Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21554?
CVE-2023-21554 is a critical code injection vulnerability in Microsoft Windows 10 1607, published on 11 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Weakness: CWE-20
Which versions are affected by CVE-2023-21554?
It affects 12 products.
Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2 and 6 more.
How do I fix CVE-2023-21554?
No fix has been published for CVE-2023-21554 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-21554 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-21554 exists.
Public exploit code: 1 Metasploit module and 6 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10 1607
- CVE-2026-33824 Microsoft Internet Key Exchange (IKE) Service Extensions Double Free
- CVE-2026-21510 Microsoft Windows Shell Protection Mechanism Failure
- CVE-2026-21513 Microsoft MSHTML Framework Protection Mechanism Failure
- CVE-2023-32049 Microsoft Windows Defender SmartScreen Security Feature Bypass
- CVE-2023-29360 Microsoft Streaming Service Untrusted Pointer Dereference
Sources
Also known as GHSA-xvhr-xr27-hpmq.