CefSharp.OffScreen Known Vulnerabilities & Fixes
CefSharp.OffScreen has 2 known security vulnerabilities in NuGet (.NET). Upgrade to version 134.3.90 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Actively Exploited
CISA has confirmed this package has vulnerabilities under active exploitation. Prioritize updating immediately.
Recommended safe version: 134.3.90
Upgrading to 134.3.90 or later resolves all 2 known vulnerabilities in CefSharp.OffScreen. Run: dotnet add package CefSharp.OffScreen --version 134.3.90
Is CefSharp.OffScreen in your project?
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Active Exploitation Warning
One or more vulnerabilities in this package are known to be actively exploited in the wild. Immediate action is recommended.
Security Summary
- 2 affected version ranges have been identified across these 2 advisories.
- 100% of known issues have a published fixed version.
- Remediation: dotnet add package CefSharp.OffScreen
Vulnerabilities
2 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Feb 22, 2022, most recently Apr 12, 2025 (1144 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2022-0609 Use after free in Animation | HIGH | 37.0.0, 37.0.0-pre01, 37.0.0-pre02, 37.0.1 (+116 more) | 98.1.210 |
| GHSA-f87w-3j5w-v58p CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows | HIGH | 100.0.120-pre, 100.0.140, 100.0.230, 101.0.150 (+188 more) | 134.3.90 |
About This Data
Vulnerability data for CefSharp.OffScreen is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related NuGet (.NET) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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