CVE-2026-45639: Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.
Other sources
Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 6.3.9600.23228Patch KB5094041 - Upgrade
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Fixed in 6.2.9200.26132Patch KB5094042 - Upgrade
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Fixed in 10.0.14393.9234Patch KB5094122 - Upgrade
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Fixed in 10.0.26100.32995Patch KB5094125 - Upgrade
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Fixed in 10.0.28000.2269Patch KB5095051 - Upgrade
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Fixed in 10.0.26100.8655Patch KB5094126 - Upgrade
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Fixed in 10.0.26200.8655Patch KB5094126 - Upgrade
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Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.19044.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.20348.5256Patch KB5094128 - Upgrade
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Fixed in 1.2.7214.0 - Upgrade
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Fixed in 10.0.17763.8880Patch KB5094123 - Upgrade
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Fixed in 2.0.1193.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-45639?
CVE-2026-45639 has a severity rating of 7.5, which is classified as high.
How do I fix CVE-2026-45639?
To address CVE-2026-45639, apply the latest security updates provided by Microsoft for affected versions of Windows.
What types of systems are affected by CVE-2026-45639?
CVE-2026-45639 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server.
What is the nature of the vulnerability in CVE-2026-45639?
CVE-2026-45639 is an out-of-bounds read vulnerability in Windows Remote Desktop Protocol that can lead to information disclosure.
Can CVE-2026-45639 be exploited remotely?
Yes, CVE-2026-45639 can be exploited by an unauthorized attacker over a network.