CVE-2026-32226

.NET Framework Denial of Service Vulnerability

CVSS 5.9 MEDIUMEPSS 0.5%CWE-362

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

14 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Affected products

Microsoft · Microsoft .NET Framework 3.5 Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 Microsoft · Microsoft .NET Framework 3.5 AND 4.8 Microsoft · Microsoft .NET Framework 3.5 AND 4.8.1 Microsoft · Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Microsoft · Microsoft .NET Framework 4.7.2 Microsoft · Microsoft .NET Framework 4.8 Microsoft · Microsoft .NET Framework 4.8.1

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References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226