Junglewise Threat Intelligence

CVE-2021-30551: Google Chromium V8 Type Confusion Vulnerability

CVE-2021-30551 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03

Technologies: Google Chromium V8, Google Chrome, Microsoft Edge, Opera Software Opera. Vendors: Google, Microsoft, Opera Software.

Executive brief

A type confusion vulnerability exists in the V8 engine of Google Chrome. A remote attacker can exploit this via a crafted HTML page to cause heap corruption, potentially leading to arbitrary code execution.

Affected products

  • Google Chrome prior to 91.0.4472.101
  • Microsoft Edge
  • Opera Software Opera

Timeline

  • 2021-06-09: patched: Fixed in Chrome version 91.0.4472.101
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed
  • 2021-11-03: exploited: Reported as exploited in the wild.

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