CVE-2026-102869 .NET and Visual Studio Elevation of Privilege Vulnerability
An attacker can elevate privileges via type confusion in .NET and Visual Studio, requiring a patch to mitigate the risk.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-102869?
CVE-2026-102869 is a high-severity vulnerability in Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Access of resource using incompatible type ('type confusion') in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
Weakness: CWE-843
Which versions are affected by CVE-2026-102869?
How do I fix CVE-2026-102869?
No fix has been published for CVE-2026-102869 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102869 being exploited?
There is no known exploitation of CVE-2026-102869 in the wild and no public exploit code.
Sources
Also known as GHSA-ggh4-6vxj-j33c.