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CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows

High severity GitHub Reviewed Published Apr 11, 2025 in cefsharp/CefSharp • Updated Apr 12, 2025

Package

nuget CefSharp.OffScreen (NuGet)

Affected versions

< 134.3.90

Patched versions

134.3.90
nuget CefSharp.OffScreen.NetCore (NuGet)
< 134.3.90
134.3.90
nuget CefSharp.WinForms (NuGet)
< 134.3.90
134.3.90
nuget CefSharp.WinForms.NetCore (NuGet)
< 134.3.90
134.3.90
nuget CefSharp.Wpf (NuGet)
< 134.3.90
134.3.90
nuget CefSharp.Wpf.HwndHost (NuGet)
< 134.3.90
134.3.90
nuget CefSharp.Wpf.NetCore (NuGet)
< 134.3.90
134.3.90

Description

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

References

@amaitland amaitland published to cefsharp/CefSharp Apr 11, 2025
Published to the GitHub Advisory Database Apr 12, 2025
Reviewed Apr 12, 2025
Last updated Apr 12, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS score

Weaknesses

No CWEs

CVE ID

No known CVE

GHSA ID

GHSA-f87w-3j5w-v58p

Source code

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