CVE-2023-21567

Name: CVE-2023-21567
Creator: NVD / NIST
Published: 2023-02-14T21:15:11.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.6/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2023-21567 is a medium-severity vulnerability rated 5.6/10 on the CVSS scale. Visual Studio Denial of Service Vulnerability. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

Visual Studio Denial of Service Vulnerability

Metrics

CVSS 3.1

5.6/10

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

EPSS Probability

0.80%

51.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Microsoft	Visual Studio 2017	>= 15.0, < 15.9.52
Microsoft	Visual Studio 2019	>= 16.0, < 16.11.24
Microsoft	Visual Studio 2022	>= 17.0, < 17.0.19
Microsoft	Visual Studio 2022	>= 17.2, < 17.2.13
Microsoft	Visual Studio 2022	>= 17.4, < 17.4.5

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21567Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21567Patch, Vendor Advisory

Timeline

Published: Feb 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21567?

Visual Studio Denial of Service Vulnerability

How severe is CVE-2023-21567?

CVE-2023-21567 has a CVSS score of 5.6/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21567?

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-2023-21567?

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

Scan your code now

Source: NVD / NIST