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High MSRC-CVE-2026-49178 1 CVE

Windows Active Directory Domain Services Remote Code Execution Vulnerability

Published Jul 14, 2026 · Updated Jul 14, 2026

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

How could an attacker exploit this vulnerability?
A domain‑authenticated attacker with access to the NSPI RPC interface can provide crafted inputs that trigger an out‑of‑bounds write in the directory service process, leading to memory corruption/remote code execution.

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

How could an attacker exploit the vulnerability?
An attacker who successfully exploits this vulnerability could achieve remote code execution without user interaction.

Security updates
10.0.17763.9020 — https://support.microsoft.com/help/5099538
10.0.20348.5386 — https://support.microsoft.com/help/5099540
10.0.19044.7548 — https://support.microsoft.com/help/5099539
10.0.26100.33158 — https://support.microsoft.com/help/5099536
10.0.26200.8875 — https://support.microsoft.com/help/5101650
10.0.28000.2525 — https://support.microsoft.com/help/5101649
10.0.14393.9339 — https://support.microsoft.com/help/5099535
6.2.9200.26226 — https://support.microsoft.com/help/5099445
6.3.9600.23291 — https://support.microsoft.com/help/5099444

Vulnerabilities 1

Revision history

  1. #1

    Information published.

References