How severe is GHSA-vv6j-ww6x-54gx?

GHSA-vv6j-ww6x-54gx has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-vv6j-ww6x-54gx?

GHSA-vv6j-ww6x-54gx 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 GHSA-vv6j-ww6x-54gx?

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 GHSA-vv6j-ww6x-54gx actively exploited in the wild?

Yes. There are 3 known exploit references for GHSA-vv6j-ww6x-54gx, 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 GHSA-vv6j-ww6x-54gx?

GHSA-vv6j-ww6x-54gx 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 GHSA-vv6j-ww6x-54gx in the CISA Known Exploited Vulnerabilities catalog?

Yes. GHSA-vv6j-ww6x-54gx (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.

What type of vulnerability is GHSA-vv6j-ww6x-54gx?

GHSA-vv6j-ww6x-54gx is classified as Use After Free (CWE-416). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-vv6j-ww6x-54gx published, and has it been updated?

GHSA-vv6j-ww6x-54gx was published on February 22, 2022 and was last updated on November 8, 2023. 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

GHSA-vv6j-ww6x-54gx

HIGH

Use after free in Animation

Also known asCVE-2022-0609

Published

Feb 22, 2022

Updated

Nov 8, 2023

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

CVE-2022-0609: Use after free in Animation

Google is aware of reports that exploits for CVE-2022-0609 exist in the wild.

The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available.

There is currently little other public information on the issue other than it has been flagged as High severity.

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

CVE-2022-0609: Use after free in Animation - https://chromereleases.googleblog.com/2022/02/stable-channel-update-for-desktop_14.html - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0609 Google is aware of reports that exploits for CVE-2022-0609 exist in the wild. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available. There is currently little other public information on

O3 Security · Impact-Aware SCA

Is GHSA-vv6j-ww6x-54gx in your stack?

O3 detects GHSA-vv6j-ww6x-54gx 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

CVSS Score

8.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

Required

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE Classification

CWE-416Use After Free

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

CefSharp

4.4/10

Code-Review2/10

Maintained10/10

Branch-ProtectionN/A

Assessed Jun 8, 2026

Timeline

First exploit

Feb 14, 2022

KEV added

Feb 15, 2022

Disclosed

Feb 22, 2022

Last updated

Nov 8, 2023

Identifiers

GHSA-vv6j-ww6x-54gx

References

Advisorynvd.nist.gov Webgithub.com Webchromereleases.googleblog.com Webcrbug.com Packagegithub.com

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.