CVEvulnerability

CVE-2021-38500

8.8 HIGH Published 2021-11-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-11-03
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

Description

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.

Affected configurations

• mozilla firefox (< 93.0) • mozilla firefox (>= 91.0 < 91.2) • mozilla firefox esr (< 78.15) • mozilla thunderbird (< 78.15) • mozilla thunderbird (>= 91.0 < 91.2) • debian debian linux 9.0 • debian debian linux 10.0 • debian debian linux 11.0

References