Risk Letters

Exploited vulnerability

CVE-2021-37973

TLP:CLEAR

Google Chromium Portals Use-After-Free Vulnerability

Google Chromium Portals contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability affects web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.

Facts

  • Vendor: Google
  • Product: Chromium Portals
  • CVSS: 9.6
  • EPSS (probability of exploitation within 30 days): 11.7 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 November 2021
  • First known exploitation: 3 November 2021
  • CISA's deadline for US federal agencies: 17 November 2021
  • Weakness: CWE-416
  • First seen by Risk Letters: 3 November 2021

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD