CVE-2026-102869 .NET & Visual Studio - Privilege Escalation

.NET and Visual Studio contain a type confusion vulnerability caused by access of resource using incompatible type, letting unauthorized attackers elevate privileges over a network, exploit requires network access.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.74% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-843

Vendor fix

Update to the latest version of .NET and Visual Studio.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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