CVE-2026-35433

.NET Elevation of Privilege Vulnerability

CVSS 7.3 HIGHEPSS 0.5%CWE-190 CWE-20

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.3EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

12 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/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 4.8 Microsoft · .NET 10.0 Microsoft · .NET 8.0 Microsoft · .NET 9.0

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References

https://access.redhat.com/security/cve/CVE-2026-35433 https://bugzilla.redhat.com/show_bug.cgi?id=2476577 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433 https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35433.json