CVE-2023-28270

Name: CVE-2023-28270
Creator: NVD / NIST
Published: 2023-04-11T21:15:26.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2023-28270 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Windows Lock Screen Security Feature Bypass Vulnerability. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

Windows Lock Screen Security Feature Bypass Vulnerability

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1809	< 10.0.17763.4252
Microsoft	Windows 10 20h2	< 10.0.19042.2846
Microsoft	Windows 10 21h2	< 10.0.19044.2846
Microsoft	Windows 10 22h2	< 10.0.19045.2846
Microsoft	Windows 11 21h2	< 10.0.22000.1817
Microsoft	Windows 11 22h2	< 10.0.22621.1555
Microsoft	Windows Server 2019	All versions
Microsoft	Windows Server 2022	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28270Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28270Patch, Vendor Advisory

Timeline

Published: Apr 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28270?

Windows Lock Screen Security Feature Bypass Vulnerability

How severe is CVE-2023-28270?

CVE-2023-28270 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28270?

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-2023-28270?

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

Scan your code now

Source: NVD / NIST