CVE-2026-84008

high

Description

Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-84008

https://github.com/dotnet/runtime/security/advisories/GHSA-846f-f764-76mx

https://github.com/dotnet/runtime/issues/135703

https://github.com/dotnet/announcements/issues/468

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-100199

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-13

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High