CVE-2026-34339
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service vulnerability
MSRC advisory May 12, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-34339
- Affected products
- Windows Lightweight Directory Access Protocol (LDAP) Denial of Service · Microsoft Windows Lightweight Directory Access Protocol (LDAP) Denial of Service · Microsoft
What happened
Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.
What it means for your business
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service vulnerability (CVE-2026-34339) was added to Microsoft’s security update guidance. Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
EPSS probability
0.29%
Sources
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