Vulnerability identifier: #VU56376
Vulnerability risk: High
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Install updates from vendor's website.
Vulnerable software versions
Firefox ESR: 91.0 - 91.0.1
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?