Improper input validation in Microsoft Windows 10 Version 1507
CVE-2023-21554
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.919 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: 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.
Affected products
- Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0, 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19043.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows Server 2008 R2 Service Pack 1 — versions 6.1.7601.0
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core Installation) — versions 6.1.7601.0
Weakness classification (CWE)
Public proof-of-concept exploits
- zoemurmure/CVE-2023-21554-PoC
- 3tternp/CVE-2023-21554
- leongxudong/MSMQ-Vulnerability
- shootweb/CVE-2023-21554
- Rahul-Thakur7/CVE-2023-21554
- rapid7/metasploit-framework
- Perucy/vulngpt
- Shourya-Sharma27/Task-3---29-05-2025
- T-RN-R/PatchDiffWednesday
- Vikashupadhyay01/VulneraSim-Modular-Cyber-Range-for-CVE-Based-Ethical-Hacking-Defense
References
- Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability (vendor-advisory)
Frequently asked questions
- What is CVE-2023-21554?
- CVE-2023-21554 is a critical-severity vulnerability in Microsoft Windows 10 Version 1507, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2023-04-11.
- How severe is CVE-2023-21554?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-21554 known to be exploited?
- 25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.