CVE-2026-58641 .NET Elevation of Privilege Vulnerability
An integer overflow in the SkiaSharp library allows local attackers to elevate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-58641?
CVE-2026-58641 is a high-severity vulnerability in Microsoft .Net, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
Weakness: CWE-190
Which versions are affected by CVE-2026-58641?
2 open source packages ship an affected version, including dotnet and dotnet-sdk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
dotnet Bitnami | From 8.0.0 | 8.0.30, 9.0.19, 10.0.11 |
dotnet-sdk Bitnami | From 8.0.0 | 8.0.30, 9.0.19, 10.0.11 |
Products include Microsoft .Net.
How do I fix CVE-2026-58641?
Upgrade dotnet to a fixed version for your release line: 8.0.30, 9.0.19 or 10.0.11.
Is CVE-2026-58641 being exploited?
There is no known exploitation of CVE-2026-58641 in the wild and no public exploit code.
Other vulnerabilities in Microsoft .Net
- CVE-2024-43498 .NET and Visual Studio Remote Code Execution Vulnerability
- CVE-2024-0057 NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
- CVE-2026-96957 .NET Security Feature Bypass Vulnerability
- CVE-2026-69439 .NET and Visual Studio Elevation of Privilege Vulnerability
- CVE-2026-71328 .NET and Visual Studio Remote Code Execution Vulnerability
Sources
Also known as BELL-CVE-2026-58641, BIT-dotnet-2026-58641, BIT-dotnet-sdk-2026-58641, GHSA-cmww-63fh-m29g, MINI-pq47-4r4v-9vp5, MINI-pqc9-7r86-fxg4.