CVE-2026-32203

Name: CVE-2026-32203
Creator: NVD / NIST
Published: 2026-04-14T18:17:27.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2026-32203 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.79%

51.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	.Net	>= 10.0.0, < 10.0.6
Microsoft	.Net	>= 8.0.0, < 8.0.26
Microsoft	.Net	>= 9.0.0, < 9.0.15
Microsoft	Visual Studio 2022	>= 17.12.0, < 17.12.19
Microsoft	Visual Studio 2022	>= 17.14.0, < 17.14.30
Microsoft	Visual Studio 2026	>= 18.4.0, < 18.4.4

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32203Vendor Advisory

Timeline

Published: Apr 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-32203?

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

How severe is CVE-2026-32203?

CVE-2026-32203 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2026-32203?

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-2026-32203?

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

Scan your code now

Source: NVD / NIST