Vulnerability Database

314,343

Total vulnerabilities in the database

CVE-2021-29952

When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

  • Published: Jun 24, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-29952
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5.1
  • AV:N/AC:H/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
mozilla / firefox - 88.0.1
mozilla / firefox - 88.1.3