MicrosoftCVE-2026-62901

Microsoft .NET 10.0 runtime: unauthorized attacker could deny service over a...

Microsoft

CVE-2026-62901 · Published Aug 11, 2026 · updated Oct 28, 2026

High7.5

Fix: upgrade to 10.0.11 or later (5 fixed versions below)

Microsoft advisory

Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.

Affected versions

Package	Affected	Fixed in
.NET 10.0 runtime Product	>= 10.0.0, < 10.0.11	10.0.11
.NET 8.0 runtime Product	>= 8.0.0, < 8.0.30	8.0.30
.NET 9.0 runtime Product	>= 9.0.0, < 9.0.19	9.0.19
Microsoft Visual Studio 2022 version 17.14 Product	>= 17.14.0, < 17.14.38	17.14.38
Microsoft Visual Studio 2026 version 18.8 Product	>= 18.0, < 18.8.3	18.8.3

Changes since it was listed

Fixed inNov 3Fixed in: .NET 10.0 10.0.11, .NET 8.0 8.0.30, .NET 9.0 9.0.19 to .NET 10.0 runtime 10.0.11, .NET 8.0 runtime 8.0.30, .NET 9.0 runtime 9.0.19

Details and references

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-606

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