9.8
Critical
CVE-2026-50447 Windows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability
Description
Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over a network.
CVSS 3.1 detail
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:CExploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1607 10.0 | 10.0.14393.0 → < 10.0.14393.9339 | 10.0.14393.9339 |
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.9020 | 10.0.17763.9020 |
| Windows 10 Version 21H2 10.0 | 10.0.19044.0 → < 10.0.19044.7548 | 10.0.19044.7548 |
| Windows 10 Version 22H2 10.0 | 10.0.19045.0 → < 10.0.19045.7548 | 10.0.19045.7548 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.8875 | 10.0.26100.8875 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.8875 | 10.0.26200.8875 |
| Windows 11 version 26H1 10.0 | 10.0.28000.0 → < 10.0.28000.2525 | 10.0.28000.2525 |
| Windows Server 2012 6.2 | 6.2.9200.0 → < 6.2.9200.26226 | 6.2.9200.26226 |
| Windows Server 2012 (Server Core installation) 6.2 | 6.2.9200.0 → < 6.2.9200.26226 | 6.2.9200.26226 |
Show the 9 other branches Hide the 9 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows Server 2012 R2 6.3 | 6.3.9600.0 → < 6.3.9600.23291 | 6.3.9600.23291 |
| Windows Server 2012 R2 (Server Core installation) 6.3 | 6.3.9600.0 → < 6.3.9600.23291 | 6.3.9600.23291 |
| Windows Server 2016 10.0 | 10.0.14393.0 → < 10.0.14393.9339 | 10.0.14393.9339 |
| Windows Server 2016 (Server Core installation) 10.0 | 10.0.14393.0 → < 10.0.14393.9339 | 10.0.14393.9339 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.9020 | 10.0.17763.9020 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.9020 | 10.0.17763.9020 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.5386 | 10.0.20348.5386 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.33158 | 10.0.26100.33158 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.33158 | 10.0.26100.33158 |
References
- Windows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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