Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-21243 Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network. https://www.cve.org/CVERecord?id=CVE-2026-21243
Post summary
CVE‑2026‑21243 describes a null pointer dereference in Windows LDAP that can lead to a network‑level denial of service. No proof of concept, exploit code, active exploitation, patch, or false‑positive claim is provided.
4 of 4 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | microsoft | windows_server_2019 | - | - | - |
| OS | microsoft | windows_server_2022 | - | - | - |
| OS | microsoft | windows_server_2022_23h2 | - | - | - |
| OS | microsoft | windows_server_2025 | - | - | - |