CVE-2025-26670: Lightweight Directory Access Protocol (LDAP) Client Remote Code Execution Vulnerability
Lightweight Directory Access Protocol (LDAP) Client Remote Code Execution Vulnerability
Other sources
Use after free in Windows LDAP - Lightweight Directory Access Protocol 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 6.1.7601.27670Patch KB5055570 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.22523Patch KB5055557 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.0.6003.23220Patch KB5055596 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.25423Patch KB5055581 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.7969Patch KB5055521 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.10240.20978Patch KB5055547 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.3775Patch KB5055523 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.25398.1551Patch KB5055527 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.5189Patch KB5055528 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.5737Patch KB5055518 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22621.5189Patch KB5055528 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.5737Patch KB5055518 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.3453Patch KB5055526 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.7136Patch KB5055519
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2025-26670?
CVE-2025-26670 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-26670?
To fix CVE-2025-26670, apply the latest security patches provided by Microsoft for your affected version of Windows.
What products are affected by CVE-2025-26670?
CVE-2025-26670 affects various versions of Windows including Windows 10, Windows 11, and several editions of Windows Server.
Can CVE-2025-26670 be exploited remotely?
Yes, CVE-2025-26670 allows an unauthorized attacker to execute code over a network, making it a remote exploitation risk.
What is a use after free vulnerability in the context of CVE-2025-26670?
A use after free vulnerability like CVE-2025-26670 occurs when a program continues to use a memory reference after it has been freed, potentially allowing an attacker to control application behavior.