CVE-2023-21771
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
- Record
CVE-2023-21771- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-591
- Updated
- 2026-11-02
EUVDEUVD-2023-25938
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
- Record
EUVD-2023-25938- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xwqg-3xfc-gp8v
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability.
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability.
- Record
GHSA-xwqg-3xfc-gp8v- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
NVD
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
- Record
CVE-2023-21771- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-591, CWE-362
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21771 is a high vulnerability (CVSS 7.0) in Microsoft Windows 10 Version 20h2, published January 10, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. No source names a fixed version.