How severe is GHSA-995f-9x5r-2rcj?

GHSA-995f-9x5r-2rcj has a CVSS score of 9.6/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-995f-9x5r-2rcj?

GHSA-995f-9x5r-2rcj affects the following packages: electron (npm). Ecosystems affected: npm.

How do I fix GHSA-995f-9x5r-2rcj?

Update electron to version 19.1.8 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-995f-9x5r-2rcj actively exploited in the wild?

Yes. There are 4 known exploit references for GHSA-995f-9x5r-2rcj, including 4 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-995f-9x5r-2rcj?

GHSA-995f-9x5r-2rcj has an EPSS (Exploit Prediction Scoring System) score of 0.1%, placing it in the 23th 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 indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

Is GHSA-995f-9x5r-2rcj in the CISA Known Exploited Vulnerabilities catalog?

Yes. GHSA-995f-9x5r-2rcj (Google Chromium GPU Heap Buffer Overflow Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-11-28. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-12-19. 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-995f-9x5r-2rcj?

GHSA-995f-9x5r-2rcj is classified as Out-of-bounds Write (CWE-787). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-995f-9x5r-2rcj published, and has it been updated?

GHSA-995f-9x5r-2rcj was published on November 25, 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 2022-11-28 — agencies required to remediate by 2022-12-19

📦 npm

GHSA-995f-9x5r-2rcj

CRITICAL

Heap buffer overflow in GPU

Also known asCVE-2022-4135

Published

Nov 25, 2022

Updated

Nov 8, 2023

Affected

1 pkg

Patched

1 / 1

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

0.1%probability of exploitation in next 30 days

Lower Risk23th 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

1 pkg affected

📦electron

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

Description

Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`electron`	≥ 19.0.0&&< 19.1.8	19.1.8

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.

Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 all…

chromereleases.googleblog.comChromeNov 2022

Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 all…

cisa.govCISANov 2022

Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 all…

chromereleases.googleblog.comGoogle-sheetNov 2022

Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 all…

crbug.comNVDJun 2024

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-995f-9x5r-2rcj in your stack?

O3 detects GHSA-995f-9x5r-2rcj across npm 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

9.6/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

Required

S:Scope

Changed

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

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

CWE Classification

CWE-787Out-of-bounds Write

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

electron

7.1/10

Dependency-Update-Tool10/10

Maintained10/10

Code-Review10/10

Vulnerabilities0/10

Branch-ProtectionN/A

Assessed Jun 9, 2026

Timeline

First exploit

Nov 24, 2022

Disclosed

Nov 25, 2022

KEV added

Nov 28, 2022

Last updated

Nov 8, 2023

Identifiers

GHSA-995f-9x5r-2rcj

References

Advisorynvd.nist.gov Webgithub.com Webgithub.com Webchromereleases.googleblog.com Webcrbug.com Websecurity.gentoo.org

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