Rapid7 Vulnerability & Exploit Database

MFSA2021-10 Firefox: Security Vulnerabilities fixed in Firefox 87 (CVE-2021-23983)

Back to Search

MFSA2021-10 Firefox: Security Vulnerabilities fixed in Firefox 87 (CVE-2021-23983)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
03/23/2021
Created
03/24/2021
Added
03/24/2021
Modified
04/07/2021

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.

Solution(s)

  • mozilla-firefox-upgrade-87_0

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;