CVE-2026-21243

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H                                    

Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.

Published Date

February 10, 2026

Last Modified

February 11, 2026

CWE ID

CWE-476

Source

NVD

Vendor

microsoft

Product

windows_server_2019