CVE-2026-69304

Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Score

CVSS 3.1 5.9 Medium

Status

Analyzed - secure@microsoft.com

Published

2026-09-08

Last modified

2026-10-14

Weaknesses

CWE-409

Affected products

• .net (Microsoft)
• Asp.net Core (Microsoft)
• Visual Studio 2022 (Microsoft)
• Visual Studio 2026 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69304