How severe is CVE-2022-0609?

CVE-2022-0609 has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-0609?

CVE-2022-0609 affects the following packages: CefSharp.Common (NuGet), CefSharp.OffScreen (NuGet), CefSharp.WinForms (NuGet), CefSharp.Wpf (NuGet), CefSharp.Wpf.HwndHost (NuGet), CefSharp.Common.NETCore (NuGet), CefSharp.OffScreen.NETCore (NuGet), CefSharp.WinForms.NETCore (NuGet), and 1 more. Ecosystems affected: NuGet.

How do I fix CVE-2022-0609?

Update CefSharp.Common to version 98.1.210 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is CVE-2022-0609 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2022-0609, including 3 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2022-0609?

CVE-2022-0609 has an EPSS (Exploit Prediction Scoring System) score of 49.0%, placing it in the 98th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2022-0609 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2022-0609 (Google Chromium Animation Use-After-Free Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-02-15. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-03-01. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

When was CVE-2022-0609 published, and has it been updated?

CVE-2022-0609 was published on April 5, 2022 and was last updated on March 14, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-02-15 — agencies required to remediate by 2022-03-01

.NET NuGet

CVE-2022-0609

HIGH

Use after free in Animation

Also known asGHSA-vv6j-ww6x-54gx

Published

Apr 5, 2022

Updated

Mar 14, 2026

Affected

9 pkgs

Patched

9 / 9

Exploits

3 known

EPSS Exploitation Probability

via FIRST.org ↗

49.0%probability of exploitation in next 30 days

High Risk98th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

9 pkgs affected

.NETCefSharp.Common.NETCefSharp.OffScreen.NETCefSharp.WinForms.NETCefSharp.Wpf.NETCefSharp.Wpf.HwndHost.NETCefSharp.Common.NETCore.NETCefSharp.OffScreen.NETCore.NETCefSharp.WinForms.NETCore+1 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

Use after free in Animation in Google Chrome prior to 98.0.4758.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected Packages

9 total 9 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`CefSharp.Common`	all versions	98.1.210
.NETNuGet	`CefSharp.OffScreen`	all versions	98.1.210
.NETNuGet	`CefSharp.WinForms`	all versions	98.1.210
.NETNuGet	`CefSharp.Wpf`	all versions	98.1.210
.NETNuGet	`CefSharp.Wpf.HwndHost`	all versions	98.1.210
.NETNuGet	`CefSharp.Common.NETCore`	all versions	98.1.210

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Use after free in Animation in Google Chrome prior to 98.0.4758.102 allo…

chromereleases.googleblog.comChromeFeb 2022

Use after free in Animation in Google Chrome prior to 98.0.4758.102 allo…

chromereleases.googleblog.comGoogle-sheetFeb 2022

Use after free in Animation in Google Chrome prior to 98.0.4758.102 allo…

cisa.govCISAFeb 2022

Frequently Asked Questions

Use after free in Animation in Google Chrome prior to 98.0.4758.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

O3 Security · Impact-Aware SCA

Is CVE-2022-0609 in your stack?

O3 detects CVE-2022-0609 across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works