OnlyFm252
Windows Message Queuing

CVE-2023-35385 — Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

Critical CVSS 9.8 EPSS 0.0231 2023-08 archive

Executive Summary

None

Overview

9.8
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Aug 8 2023
Last Updated Aug 8 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.0231 — 0.81135 percentile
NVD CVSS 9.8 CRITICAL — matches MSRC

CVSS 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
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 8.5

EPSS Score

0.0231
probability of exploitation in the next 30 days
0.81135 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

21 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5029259 (Security Update) Critical Remote Code Execution Yes
Windows 10 for x64-based Systems 5029259 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for 32-bit Systems 5029242 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for x64-based Systems 5029242 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 5029247 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 5029247 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 5029247 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for 32-bit Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for ARM64-based Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for x64-based Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for 32-bit Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for ARM64-based Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for x64-based Systems 5029244 (Security Update) Critical Remote Code Execution Yes
Windows 11 version 21H2 for ARM64-based Systems 5029253 (Security Update) Critical Remote Code Execution Yes
Windows 11 version 21H2 for x64-based Systems 5029253 (Security Update) Critical Remote Code Execution Yes
Windows 11 Version 22H2 for ARM64-based Systems 5029263 (Security Update) Critical Remote Code Execution Yes
Windows 11 Version 22H2 for x64-based Systems 5029263 (Security Update) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5029318 (Monthly Rollup) 5029301 (Security Only) Critical Remote Code Execution 5028222 Base: 9.8 Temporal: 8.5 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 6.0.6003.22216 Yes 5029318 5029301 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5029318 (Monthly Rollup) 5029301 (Security Only) Critical Remote Code Execution 5028222 Base: 9.8 Temporal: 8.5 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 6.0.6003.22216 Yes 5029318 5029301 Windows Server 2008 for x64-based Systems Service Pack 2 5029318 (Monthly Rollup) 5029301 (Security Only) Critical Remote Code Execution 5028222 Base: 9.8 Temporal: 8.5 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 6.0.6003.22216 Yes 5029318 5029301 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5029318 (Monthly Rollup) 5029301 (Security Only) Critical Remote Code Execution 5028222 Base: 9.8 Temporal: 8.5 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 6.0.6003.22216 Yes 5029318 5029301 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5029296 (Monthly Rollup) 5029307 (Security Only) Critical Remote Code Execution 5028240 Base: 9.8 Temporal: 8.5 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 6.1.7601.26664 Yes 5029296 5029307 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5029296 (Monthly Rollup) 5029307 (Security Only) Critical Remote Code Execution 5028240 Base: 9.8 Temporal: 8.5 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 6.1.7601.26664 Yes 5029296 5029307 Windows Server 2012 5029295 (Monthly Rollup) 5029308 (Security Only) Critical Remote Code Execution 5028232 Base: 9.8 Temporal: 8.5 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 6.2.9200.24414 Yes None Windows Server 2012 (Server Core installation) 5029295 (Monthly Rollup) 5029308 (Security Only) Critical Remote Code Execution 5028232 Base: 9.8 Temporal: 8.5 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 6.2.9200.24414 Yes None Windows Server 2012 R2 5029312 (Monthly Rollup) 5029304 (Security Only) Critical Remote Code Execution 5028228 Base: 9.8 Temporal: 8.5 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 6.3.9600.21503 Yes None Windows Server 2012 R2 (Server Core installation) 5029312 (Monthly Rollup) 5029304 (Security Only) Critical Remote Code Execution 5028228 Base: 9.8 Temporal: 8.5 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 6.3.9600.21503 Yes None Windows Server 2016 5029242 (Security Update) Critical Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 5029242 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 5029247 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 5029247 (Security Update) Critical Remote Code Execution Yes

Patches

6 patches
Article Type Restart
5029259 Security Update Yes
5029242 Security Update Yes
5029247 Security Update Yes
5029244 Security Update Yes
5029253 Security Update Yes
5029263 Security Update Yes

Known Exploits

Acknowledgments

Yuki Chen

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