CVEvulnerability

CVE-2021-23983

6.5 MEDIUM Published 2021-03-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-03-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
CWE-787

Description

By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.

Affected configurations

• mozilla firefox (< 87.0)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References