GHSA-f87w-3j5w-v58p — Vulnerability in CefSharp.OffScreen —...
CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows
Summary
Advisory Timeline
- First published April 12, 2025 (548 days ago).
- Last revised April 12, 2025 — 0 days after initial publication.
Remediation
Upgrade to the fixed version using your package manager.
dotnet add package CefSharp.OffScreen --version 134.3.90
dotnet add package CefSharp.WinForms --version 134.3.90
dotnet add package CefSharp.OffScreen.NetCore --version 134.3.90
dotnet add package CefSharp.Wpf.NetCore --version 134.3.90
dotnet add package CefSharp.WinForms.NetCore --version 134.3.90
dotnet add package CefSharp.Wpf.HwndHost --version 134.3.90
dotnet add package CefSharp.Wpf --version 134.3.90
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (7)
Affects 1 ecosystem: nuget (7).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| CefSharp.OffScreen | nuget | 100.0.120-pre, 100.0.140, 100.0.230, 101.0.150 (+188 more) | 134.3.90 |
| CefSharp.WinForms | nuget | 1.25.3, 100.0.120-pre, 100.0.140, 100.0.230 (+193 more) | 134.3.90 |
| CefSharp.OffScreen.NetCore | nuget | 100.0.120-pre, 100.0.140, 100.0.230, 101.0.150 (+106 more) | 134.3.90 |
| CefSharp.Wpf.NetCore | nuget | 100.0.120-pre, 100.0.140, 100.0.230, 101.0.150 (+106 more) | 134.3.90 |
| CefSharp.WinForms.NetCore | nuget | 100.0.120-pre, 100.0.140, 100.0.230, 101.0.150 (+106 more) | 134.3.90 |
| CefSharp.Wpf.HwndHost | nuget | 100.0.140, 101.0.150, 101.0.180, 102.0.90 (+77 more) | 134.3.90 |
| CefSharp.Wpf | nuget | 1.25.2-perlun0, 1.25.3, 1.25.4, 1.25.5 (+201 more) | 134.3.90 |
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 8.3 score means for each attack dimension.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/cefsharp/CefSharp/security/advisories/GHSA-f87w-3j5w-v58pWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-2783ADVISORY
- https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.htmlWEB
- https://github.com/cefsharp/CefSharpPACKAGE
- https://github.com/cefsharp/CefSharp/releases/tag/v134.3.90WEB
- https://issues.chromium.org/issues/405143032WEB
Frequently Asked Questions
- What is GHSA-f87w-3j5w-v58p?
- CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.3/10).
- How do I check if my project is affected by GHSA-f87w-3j5w-v58p?
- GHSA-f87w-3j5w-v58p affects CefSharp.OffScreen, CefSharp.WinForms and CefSharp.OffScreen.NetCore (and 4 more). Use GeekWala's free vulnerability scanner to check your dependencies against GHSA-f87w-3j5w-v58p and 200,000+ other known vulnerabilities.
Severity & Exploitability
High exploitability or significant impact. Prioritize remediation within days.
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