CVE-2021-4102
Google Chromium V8 Use-After-Free Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 29 December 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- 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
- 7.84% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 15 December 2021 · due 29 December 2021
- Weakness
- CWE-416
- Affected
- google/chrome
- Source
- chrome-cve-admin@google.com
EPSS 7.8% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-4102
References
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1278387Third Party Advisory
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1278387Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-4102US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.