vulnerability

MFSA2021-16 Firefox: Security Vulnerabilities fixed in Firefox 88 (CVE-2021-23998)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Apr 19, 2021
Added
Apr 20, 2021
Modified
Aug 11, 2025

Description

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Solution

mozilla-firefox-upgrade-88_0
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.