Zero-day vulnerability in Microsoft Internet Explorer

Buffer overflow
CVE-2020-0674

Vulnerability details

Advisory: SB2020011801 - Remote code execution in Microsoft Internet Explorer

Vulnerable component: Microsoft Internet Explorer

CVE-ID: CVE-2020-0674

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-119 - Memory corruption

Description:

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the scripting engine. A remote attacker can create a specially crafted webpage, 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.

Public Exploits:

- Internet Explorer 11 - Use-After-Free [Exploit-DB]

- Microsoft Internet Explorer 8/11 and WPAD service 'Jscript.dll' - Use-After-Free [Exploit-DB]

- Microsoft Internet Explorer 11 - Use-After-Free [Exploit-DB]

- Microsoft Internet Explorer 11 32-bit - Use-After-Free [Exploit-DB]

External links:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200001


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.