🛡️ CVE-2026-50646 — .net

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-502 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

.NET Framework Remote Code Execution Vulnerability

Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-50646 is classified as CWE-502: Deserialization of Untrusted Data. Serialised data from an untrusted source is reconstructed into objects, which can trigger code during the process.

Affected software

CVE-2026-50646 is recorded against 6 packages.

  • .net (from 9.0.0 up to 9.0.18)
  • .net-framework
  • dotnet
  • dotnet-sdk
  • visual-studio-2022 (from 17.14.0 up to 17.14.36)
  • visual-studio-2026 (from 18.7.0 up to 18.7.4)

Timeline and source

Published on 14 July 2026 and last revised on 24 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-502
Public Exploit ✅ No
Source NVD
Published 2026-07-14
Updated 2026-08-12
Modified 2026-07-24

Affected Packages

Software From version Fixed in
.net 9.0.0 9.0.18
.net-framework — —
dotnet — —
dotnet-sdk — —
visual-studio-2022 17.14.0 17.14.36
visual-studio-2026 18.7.0 18.7.4

Similar Threats

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