GHSA-F87W-3J5W-V58P

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

GHSA-F87W-3J5W-V58P has a CVSS score of 8.3 (High). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (134.3.90); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is GHSA-F87W-3J5W-V58P? GHSA-F87W-3J5W-V58P is a high-severity security vulnerability in CefSharp.Wpf (nuget), affecting versions < 134.3.90. It is fixed in 134.3.90.
2. How severe is GHSA-F87W-3J5W-V58P? GHSA-F87W-3J5W-V58P has a CVSS score of 8.3 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by GHSA-F87W-3J5W-V58P?
   • CefSharp.Wpf (nuget) (versions < 134.3.90)
   • CefSharp.Wpf.HwndHost (nuget) (versions < 134.3.90)
   • CefSharp.Wpf.NetCore (nuget) (versions < 134.3.90)
   • CefSharp.WinForms (nuget) (versions < 134.3.90)
   • CefSharp.WinForms.NetCore (nuget) (versions < 134.3.90)
   • CefSharp.OffScreen.NetCore (nuget) (versions < 134.3.90)
   • CefSharp.OffScreen (nuget) (versions < 134.3.90)
4. Is there a fix for GHSA-F87W-3J5W-V58P? Yes. GHSA-F87W-3J5W-V58P is fixed in 134.3.90. Upgrade to this version or later.
5. Is GHSA-F87W-3J5W-V58P exploitable, and should I be worried? Whether GHSA-F87W-3J5W-V58P is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether GHSA-F87W-3J5W-V58P is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix GHSA-F87W-3J5W-V58P?
   • Upgrade CefSharp.Wpf to 134.3.90 or later
   • Upgrade CefSharp.Wpf.HwndHost to 134.3.90 or later
   • Upgrade CefSharp.Wpf.NetCore to 134.3.90 or later
   • Upgrade CefSharp.WinForms to 134.3.90 or later
   • Upgrade CefSharp.WinForms.NetCore to 134.3.90 or later
   • Upgrade CefSharp.OffScreen.NetCore to 134.3.90 or later
   • Upgrade CefSharp.OffScreen to 134.3.90 or later