CVE-2024-30040highunder attackCWE-20

CVE-2024-30040: high-severity vulnerability in Microsoft Windows 10 Version 1507

Windows MSHTML Platform Security Feature Bypass Vulnerability

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 8.8epss 3.9%
from disclosure to weapon
Published on NVDMay 14
CISA KEVMay 14
Action required by CISAfederal deadline: 2024-06-04

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

In short

A security feature in Windows MSHTML (the rendering engine used by Internet Explorer and some Windows components) can be bypassed, allowing attackers to bypass protections that would normally prevent malicious actions. This matters because it could allow attackers to run arbitrary code or access sensitive information on affected systems.

Technical detail

This vulnerability in the MSHTML rendering engine permits circumvention of platform-level security mechanisms through improper input validation (CWE-20). An attacker can craft malicious content that exploits this bypass to execute code or escalate privileges; the attack vector is typically web-based (via compromised or malicious HTML content). The high CVSS score (8.8) indicates significant impact on system integrity and confidentiality.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Windows MSHTML Platform Security Feature Bypass Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C