CVE-2023-21771HighCVSS 7.0

Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability

Published
January 10, 2023
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-21771 →

📋 Description

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

🎯 Affected products14

  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 for x64-based Systems
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)

✅ Remediation

KB5022291 (Security Update) — fixed build 10.0.20348.1487 KB5022282 (Security Update) — fixed build 10.0.19042.2486 KB5022287 (Security Update) — fixed build 10.0.22000.1455 KB5022282 (Security Update) — fixed build 10.0.19044.2486 KB5022303 (Security Update) — fixed build 10.0.22621.1105 KB5022282 (Security Update) — fixed build 10.0.19045.2486

🔗 References (7)