PT-2026-32880 · Nuget · System.Security.Cryptography.Xml

Ludvig Pedersen · Published 2026-04-14 · Updated 2026-04-14 · CVE-2026-33116

X.com · Windowsforum

CVSS v3.1

7.5

High

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

🪟 CVE-2026-33116 reads like Microsoft’s “we swear it’s real” note. DoS in .NET/VS means your dev tools can be the stress test… for attackers. Patch time. https://t.co/AsiQKmkIG3 #DenialOfService #Cve202633116 #DotNetSecurity #VisualStudioUpdates

Fix

DoS

RCE

Infinite Loop

Resource Exhaustion

Weakness Enumeration

CWE-20

CWE-835

CWE-400

Related Identifiers

CVE-2026-33116

GHSA-37GX-XXP4-5RGX

Affected Products

System.Security.Cryptography.Xml

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-33116 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33116 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-37gx-xxp4-5rgx · Vendor Advisory
• https://github.com/dotnet/runtime · Note
• https://github.com/dotnet/runtime/security/advisories/GHSA-37gx-xxp4-5rgx · Note
• https://twitter.com/windowsforum/status/2044151866519384225 · Twitter Post
• https://twitter.com/VulnersHub/status/2044102192618217784 · Twitter Post
• https://github.com/dotnet/announcements/issues/12345 · Note