FAQ
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.
MSRC compact vulnerability detail
CVE-2025-26663 · Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.
Signals
Windows LDAP - Lightweight Directory Access Protocol
Remote Code Execution
Exploited: No
Publicly disclosed: No
Exploitability: Exploitation More Likely
CWE
Patch Diff
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Resolved binary override
Use this when the MSRC module name cannot be mapped automatically or the resolved binary looks wrong.
Description
Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.
FAQ / Articles
FAQ
Are the updates for Windows 10 for x64-based Systems and Windows 10 for 32-bit Systems currently available? Yes. As of April 9, 2025, the security update (5055547) for Windows 10 for x64-based Systems and Windows 10 for 32-bit Systems are available. Customers running Windows 10 should ensure the update is installed to be protected from this vulnerability.
Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.
FAQ
How could an attacker exploit this vulnerability? An unauthenticated attacker could sequentially send specially crafted requests to a vulnerable LDAP server. Successful exploitation could result in a use after free which could be leveraged to achieve remote code execution.