|Number of vulnerabilities
|Public exploit code for vulnerability #1 is available.
Client/Desktop applications / Messaging software
This security bulletin contains one high risk vulnerability.
CWE-416 - Use After Free
Exploit availability: YesDescription
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing HTML content, caused by MCallGetProperty opcode write side effects. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.Mitigation
Install update from vendor's website.
Mozilla Thunderbird: 60.0 - 78.4.1External links
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.