Zero-day vulnerability in Windows

Security features bypass
CVE-2022-41091

Vulnerability details

Advisory: SB2022110909 - Multiple vulnerabilities in Microsoft Windows Mark of the Web

Vulnerable component: Windows

CVE-ID: CVE-2022-41091

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

CWE-ID: CWE-254 - Security Features

Description:

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to security features bypass in Windows Mark of the Web functionality. A remote attacker can trick a victim to open a specially crafted file and bypass Protected View in Microsoft Office, as demonstrated using a specially crafted ZIP archive.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41091

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.