CVE-2026-35433

Name: CVE-2026-35433
Creator: NVD / NIST
Published: 2026-05-12T18:17:13.71+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 0.53%

Last modified Jun 18, 2026

CVE-2026-35433 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

0.53%

40.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	.Net Framework	4.8
Microsoft	.Net Framework	3.5
Microsoft	.Net	>= 8.0.0, < 8.0.27
Microsoft	.Net	>= 9.0.0, < 9.0.16
Microsoft	.Net	>= 10.0.0, < 10.0.8
Microsoft	.Net Framework	4.8.1
Microsoft	.Net Framework	4.7.2

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433Vendor Advisory

Timeline

Published: May 12, 2026
Last Modified: Jun 18, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35433?

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

How severe is CVE-2026-35433?

CVE-2026-35433 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35433?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35433?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST