CVE-2021-4102 (GCVE-0-2021-4102)

Vulnerability from cvelistv5 – Published: 2022-02-11 22:55 – Updated: 2025-10-21 23:15
VLAI? CISA KEV
Summary
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.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Use after free
Assigner
References
Impacted products
Vendor Product Version
Google Chrome Affected: unspecified , < 96.0.4664.110 (custom)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c8327794-c21c-45a6-b16e-00b6b3ec67e0

Vulnerability ID: CVE-2021-4102

Status: Confirmed

Status Updated: 2021-12-15 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2021-12-15
Asserted: 2021-12-15
Scope
Notes: KEV entry: Google Chromium V8 Use-After-Free Vulnerability | Affected: Google / Chromium V8 | Description: Google Chromium V8 Engine contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera. | Required action: Apply updates per vendor instructions. | Due date: 2021-12-29 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-4102
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Chromium V8
Due Date 2021-12-29
Date Added 2021-12-15
Vendorproject Google
Vulnerabilityname Google Chromium V8 Use-After-Free Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.