Zero-day vulnerability in Microsoft Internet Explorer

External Control of File Name or Path
CVE-2025-33053

Vulnerability details

Advisory: SB2025061068 - Remote code execution in Microsoft Windows MSHTML

Vulnerable component: Microsoft Internet Explorer

CVE-ID: CVE-2025-33053

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-73 - External Control of File Name or Path

Description:

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

The vulnerability exists due to incorrect processing of file path in WebDav links. A remote attacker can trick the victim into clicking on a specially crafted link and execute arbitrary code on the system.

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

External links:

https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-33053

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.