Rapid7

vulnerability

MFSA2021-28 Firefox: Security Vulnerabilities fixed in Firefox 90 (CVE-2021-30547)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Jun 15, 2021
Added
Jul 14, 2021
Modified
Mar 27, 2026

Description

Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.

Solution

mozilla-firefox-upgrade-90_0
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.