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CVE-2023-36391

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

7.8 High

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

7.24%Up 7.2 points since Dec 13, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.8

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Record
CVE-2023-36391
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weakness
CWE-59
Updated
2026-11-02
EUVDEUVD-2023-40357 7.8

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Record
EUVD-2023-40357
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-q28x-8jvc-pp88 7.8

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Record
GHSA-q28x-8jvc-pp88
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
NVD 7.8

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

Record
CVE-2023-36391
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-59
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-36391 is a high vulnerability (CVSS 7.8) in Microsoft Windows 11 Version 22h3, published December 12, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.24%, the 94th percentile. No source names a fixed version.

References

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