Windows Message Queuing
CVE-2024-20663 — Windows Message Queuing Client (MSMQC) Information Disclosure
Executive Summary
None
Overview
6.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.7
EPSS Score
0.01925
probability of exploitation in the next 30 days
0.77299 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
30 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 5034134 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 for x64-based Systems | 5034134 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 5034119 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1607 for x64-based Systems | 5034119 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 5034127 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 5034127 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 1809 for x64-based Systems | 5034127 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 21H2 for x64-based Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 22H2 for 32-bit Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 22H2 for ARM64-based Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 10 Version 22H2 for x64-based Systems | 5034122 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 version 21H2 for ARM64-based Systems | 5034121 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 version 21H2 for x64-based Systems | 5034121 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 Version 22H2 for ARM64-based Systems | 5034123 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 Version 22H2 for x64-based Systems | 5034123 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 Version 23H2 for ARM64-based Systems | 5034123 (Security Update) |
Important | Information Disclosure | Yes |
| Windows 11 Version 23H2 for x64-based Systems | 5034123 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 5034173 (Monthly Rollup) 5034176 (Security Only) Important Information Disclosure 5033422 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.22464 Yes 5034173 5034176 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5034173 (Monthly Rollup) 5034176 (Security Only) Important Information Disclosure 5033422 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.22464 Yes 5034173 5034176 Windows Server 2008 for x64-based Systems Service Pack 2 5034173 (Monthly Rollup) 5034176 (Security Only) Important Information Disclosure 5033422 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.22464 Yes 5034173 5034176 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5034173 (Monthly Rollup) 5034176 (Security Only) Important Information Disclosure 5033422 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.22464 Yes 5034173 5034176 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5034169 (Monthly Rollup) 5034167 (Security Only) Important Information Disclosure 5033433 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.26910 Yes 5034169 5034167 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5034169 (Monthly Rollup) 5034167 (Security Only) Important Information Disclosure 5033433 Base: 6.5 Temporal: 5.7 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.26910 Yes 5034169 5034167 Windows Server 2012 | 5034184 (Monthly Rollup) |
Important | Information Disclosure | Yes |
| Windows Server 2012 (Server Core installation) | 5034184 (Monthly Rollup) |
Important | Information Disclosure | Yes |
| Windows Server 2012 R2 | 5034171 (Monthly Rollup) |
Important | Information Disclosure | Yes |
| Windows Server 2012 R2 (Server Core installation) | 5034171 (Monthly Rollup) |
Important | Information Disclosure | Yes |
| Windows Server 2016 | 5034119 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2016 (Server Core installation) | 5034119 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2019 | 5034127 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2019 (Server Core installation) | 5034127 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2022 | 5034129 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2022 (Server Core installation) | 5034129 (Security Update) |
Important | Information Disclosure | Yes |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 5034130 (Security Update) |
Important | Information Disclosure | Yes |
Patches
10 patches
| Article | Type | Restart |
|---|---|---|
5034134 |
Security Update | Yes |
5034119 |
Security Update | Yes |
5034127 |
Security Update | Yes |
5034122 |
Security Update | Yes |
5034121 |
Security Update | Yes |
5034123 |
Security Update | Yes |
5034184 |
Monthly Rollup | Yes |
5034171 |
Monthly Rollup | Yes |
5034129 |
Security Update | Yes |
5034130 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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