CVE-2023-21554

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 95.45%
EPSS Percentile: 99.87%
CISA KEV: Not listed

Description

Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 12-Apr-2023 04:15
Last Modified: 17-Jun-2026 12:33
EPSS Date: 2026-10-18
CWE: CWE-20

CVSS Vector


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

Affected Products / Versions

microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.5850
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.4252
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
microsoft / windows_10_20h2
Version / affected range: * · before (exclusive) 10.0.19042.2846
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.2846
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.2846
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
microsoft / windows_11_21h2
Version / affected range: * · before (exclusive) 10.0.22000.1817
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
microsoft / windows_11_22h2
Version / affected range: * · before (exclusive) 10.0.22621.1555
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
microsoft / windows_server_2008
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
microsoft / windows_server_2008
Version / affected range: r2
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
microsoft / windows_server_2012
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft / windows_server_2012
Version / affected range: r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
microsoft / windows_server_2016
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
microsoft / windows_server_2019
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
microsoft / windows_server_2022
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

References

af854a3a-2127-422b-91ae-364da2661108

Last enrichment sync: 19-Oct-2026 16:13
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

Learn how to detect and mitigate CVE-2023-28252, an elevation of privilege (EoP) vulnerability in CLFS exploited in the wild, and CVE-2023-21554, a critical remote code execution (RCE) vulnerability in MSMQ. Microsoft’s April 2023 Patch Tuesday: Two Vulnerabilities Highlighted

CVE (1)

Malware (2)

Threat Actors (1)

MITRE ATT&CK (3)

Vendors (1)

Products (5)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.