Windows Defender update patches severe remote code execution bugs

Madeleine Dean By: Madeleine Dean
2 minute read
Windows Defender update

Home » News » Windows Defender update patches severe remote code execution bugs

If Windows Defender is your main antivirus tool, make sure that you’re running the latest definition updates (1.1.14700.5) on your machine. Microsoft just patched a severe remote code execution bug that could allow hackers to take control over your computer.

The Redmond giant preferred to deploy the patch as soon as possible and not wait until April Patch Tuesday in order to nip remote code execution attempts in the bud.

As Microsoft explains, the root-cause for this vulnerability is an incomplete Malware Protection Engine scan that fails to detect the threat. This security vulnerability was initially discovered by the Google Project Zero team.

A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading to memory corruption. An attacker who successfully exploited this vulnerability could execute arbitrary code in the security context of the LocalSystem account and take control of the system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

The latest Windows Defender update fixes this vulnerability by correcting the way in which Windows 10’s Malware Protection Engine scans specially crafted files.

There are many way attackers could take control over your machine. As Microsoft explains, hackers could push specially crafted files to your computer when your access a website. At the same time, attackers could send malware-infected files via email or instant messaging apps.

Websites that host user-provided content are the perfect vehicle for spreading malicious software that take advantage of this Windows Defender vulnerability.

End users don’t need to take any action to install the update as the automatic detection and update deployment will apply it within 48 hours of release.

For more information, check out Microsoft’s Security TechCenter.

RELATED STORIES TO CHECK OUT:

Discussions

Next up

Microsoft redesigns how Chinese and Japanese IMEs work with apps

Rabia Noureen avatar. By: Rabia Noureen
2 minute read

Microsoft released new Japanese and Chinese IMEs to Windows Insiders that are currently enrolled in the Fast Ring. These changes were introduced with the  Windows […]

Continue Reading

Fix Windows 10 file size incorrect like a PRO

Matthew Adams By: Matthew Adams
3 minute read

Some users have been a little baffled by properties windows showing them wrong calculation of file and folder size. File Explorer shows some users that […]

Continue Reading

Check out this Windows 10 Fluent Design concept with rounded edges

Rabia Noureen avatar. By: Rabia Noureen
2 minute read

Microsoft is planning to redesign Windows 10 icons in Windows 10 20H1. The company says that the upcoming version of Windows will bring rounded corners […]

Continue Reading