CVE-2026-50439: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23291Patch KB5099444 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9339Patch KB5099535 - Upgrade
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Fixed in 6.2.9200.26226Patch KB5099445 - Upgrade
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Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
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Fixed in 10.0.26200.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
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Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
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Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
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Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
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Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
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Fixed in 10.0.17763.9020Patch KB5099538
Event History
Frequently Asked Questions
What is the severity of CVE-2026-50439?
CVE-2026-50439 has a severity score of 9.8, classified as critical.
How do I fix CVE-2026-50439?
To fix CVE-2026-50439, apply the latest security updates provided by Microsoft for the affected Windows versions.
What types of systems are affected by CVE-2026-50439?
CVE-2026-50439 affects various versions of Microsoft Windows, including Windows 10, Windows 11, and multiple Windows Server editions.
What is the potential impact of CVE-2026-50439?
The potential impact of CVE-2026-50439 includes unauthorized remote code execution which can compromise system security.
Is user interaction required for CVE-2026-50439 exploitation?
No, CVE-2026-50439 does not require user interaction for exploitation.