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MSRC compact vulnerability detail

CVE-2026-34339 · Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability

Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.

Severity
Important
Impact
Denial of Service
CVSS
5.5 base · 4.8 temporal
Release
2026-05-12
Signals
Windows LDAP - Lightweight Directory Access Protocol Denial of Service Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-476: NULL Pointer Dereference
Patch Diff
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Resolved binary override
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Description
Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.
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