CVEvulnerability

CVE-2021-29966

8.8 HIGH Published 2021-06-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

Description

Mozilla developers reported memory safety bugs present in Firefox 88. 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 < 89.

Affected configurations

• mozilla firefox (>= 78.11.0 < 89.0)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References