#VU51356 Input validation error in Microsoft Internet Explorer and Windows - CVE-2021-27085
Published: March 9, 2021 / Updated: May 19, 2021
Vulnerability identifier: #VU51356
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2021-27085
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Microsoft Internet Explorer
Windows
Microsoft Internet Explorer
Windows
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Internet Explorer. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary code on the target system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.