MFSA2021-40 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.1 (CVE-2021-38492)
Description
When delegating navigations to the operating system, Firefox would accept the mk scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode.This bug only affects Firefox for Windows. Other operating systems are unaffected.
Solution(s)
mozilla-firefox-esr-upgrade-91_1
Referenceshttps://attackerkb.com/topics/cve-2021-38492CVE - 2021-38492http://www.mozilla.org/security/announce/2021/mfsa2021-40.html