CVE-2023-35644

Name: CVE-2023-35644
Creator: NVD / NIST
Published: 2023-12-12T18:15:20.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 6.25%

Last modified Jun 17, 2026

CVE-2023-35644 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Windows Sysmain Service Elevation of Privilege Vulnerability. EPSS estimates a 6.25% chance of exploitation in the next 30 days.

Description

Windows Sysmain Service Elevation of Privilege Vulnerability

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

6.25%

92.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1809	< 10.0.17763.5206
Microsoft	Windows 10 21h2	< 10.0.19041.3803
Microsoft	Windows 10 22h2	< 10.0.19045.3803
Microsoft	Windows 11 21h2	< 10.0.22000.2652
Microsoft	Windows 11 22h2	< 10.0.22621.2861
Microsoft	Windows 11 23h2	< 10.0.22631.2861
Microsoft	Windows Server 2019	All versions
Microsoft	Windows Server 2022	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35644Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35644Patch, Vendor Advisory

Timeline

Published: Dec 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-35644?

Windows Sysmain Service Elevation of Privilege Vulnerability

How severe is CVE-2023-35644?

CVE-2023-35644 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 6.25% probability of exploitation in the next 30 days.

How do I fix CVE-2023-35644?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-35644?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST