CVE-2026-65777: Active Directory Security Feature Bypass Vulnerability
Active Directory Security Feature Bypass Vulnerability
Other sources
Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature 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 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7517Patch KB5120240 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994
Event History
Frequently Asked Questions
What is the severity of CVE-2026-65777?
CVE-2026-65777 has a medium severity rating of 5.3.
How does CVE-2026-65777 affect Microsoft Windows products?
CVE-2026-65777 allows an authorized attacker to bypass security features in Microsoft Active Directory due to inadequate encryption strength.
What types of products are vulnerable to CVE-2026-65777?
CVE-2026-65777 affects Microsoft Windows 11, Windows Server 2022, Windows Server 2025, and Microsoft Windows Active Directory.
What is the vector of attack for CVE-2026-65777?
CVE-2026-65777 can be exploited over a network by an authorized attacker.
What is the recommended action for mitigating CVE-2026-65777?
To mitigate CVE-2026-65777, users should apply security updates provided by Microsoft as soon as they are available.