However, he said that experts have already started working on the issue security.
While Microsoft said it knew about zero day vulnerability in Internet Explorer and about its exploitation by hackers, he said they have become few attacks, indicating that vulnerability is not used to target many victims, but is part of attacks that target a small number of users.
Connect to zero-day vulnerability in Firefox, fixed last week
Last week, the Mozilla fixed a similar zero-day vulnerability, which was also used by hackers to attack Firefox users. The vulnerability was discovered by her Qihoo 360, which updated Mozilla.
The researchers of Qihoo 360, had written in a tweet (which does not exist now) that the attackers were exploiting another zero-day vulnerability (beyond that in Firefox), which targeted Internet Explorer users. Obviously, they were referring to this particular day zero vulnerability, announced by Microsoft.
There is no information yet on the attacker or the nature of the attacks.
RCE vulnerability at Internet Explorer
How did the Microsoft vulnerability?
The vulnerability lies in the way the scripting engine handles things in memory in Internet Explorer. This problem could allow an attacker to execute code. The attacker who successfully exploits vulnerability may acquire the same user rights as the victim user. If the user is logged on with user administrator rights, the attacker will be able to get the user control of an entire system. This means that they will be able to do anything (eg install programs, edit or delete data, create accounts, etc.).
According to Microsoft, all versions of Windows desktop and Server OS are vulnerable.
This zero-day RCE vulnerability is also known as CVE-2020-0674.
Internet Explorer is not the default browser in the latest versions of Windows OS, but it is still used. Users with earlier versions of Windows are at greater risk.