CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows
Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. (Chromium security severity: High)
https://nvd.nist.gov/vuln/detail/CVE-2025-2783 https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html https://issues.chromium.org/issues/405143032
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | CefSharp.OffScreen | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.OffScreen.NetCore | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.WinForms | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.WinForms.NetCore | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.Wpf | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.Wpf.HwndHost | < 134.3.90 | 134.3.90 |
| .NET (NuGet) | CefSharp.Wpf.NetCore | < 134.3.90 | 134.3.90 |
References
- https://github.com/cefsharp/CefSharp/security/advisories/GHSA-f87w-3j5w-v58p
- https://nvd.nist.gov/vuln/detail/CVE-2025-2783
- https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html
- https://github.com/cefsharp/CefSharp
- https://github.com/cefsharp/CefSharp/releases/tag/v134.3.90
- https://issues.chromium.org/issues/405143032
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
-- Platform
- .NET (NuGet)
- Package
CefSharp.OffScreen, CefSharp.OffScreen.NetCore, CefSharp.WinForms- Disclosed
- 12.04.2025
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-f87w-3j5w-v58p - CC BY 4.0
Vulnerability history: CefSharp.Wpf.HwndHost
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 10.2020 04.2025
- Without a fix
- 0
- Exploited in attacks
- 5
Severity breakdown
- High 5
- Medium 1
Disclosures per year
- 2020: 4
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
-
CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.