CVE-2022-4262
Google Chromium V8 Type Confusion Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 December 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Type confusion in V8 in Google Chrome prior to 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 23.51% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 5 December 2022 · due 26 December 2022
- Weakness
- CWE-843
- Affected
- google/chrome
- Source
- chrome-cve-admin@google.com
EPSS moved from 23.5% on 30 September 2026 to 23.5% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply updates per vendor instructions. https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.html; https://nvd.nist.gov/vuln/detail/CVE-2022-4262
References
- https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.htmlPatch, Release Notes, Vendor Advisory
- https://crbug.com/1394403Permissions Required, Vendor Advisory
- https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.htmlPatch, Release Notes, Vendor Advisory
- https://crbug.com/1394403Permissions Required, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-4262US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.