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CVE-2026-69805Important

.NET Elevation of Privilege Vulnerability

MSRC advisory NVD CVE.org

Assessment

External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network.

Severity
Important
CVSS base score
7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Elevation of Privilege
EPSS, next 30 days
0.6%Higher than 45.2% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
.NET
Weakness
CWE-73: External Control of File Name or Path
Issued by
Microsoft
Published
8 Sep 2026 · September 2026
Last revised
8 Sep 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Developer Tools, Open Source Software
3 affected products
  • Microsoft Visual Studio 2022 version 17.14
  • Microsoft Visual Studio 2026 version 18.9
  • Microsoft.Diagnostics.Runtime
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