VULNERABILITY INTELLIGENCE

CVE-2021-23988

CVSS score8.8 HIGH
EPSS probability1.08%
CISA KEVNot currently listed
Published2021-03-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references