Actively exploited · Published May 14, 2024 · Assigned by microsoft

CVE-2024-30040Windows MSHTML Platform Security Feature Bypass Vulnerability

High 8.8 Exploited

In plain English

A high-severity improper input validation in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on May 14, 2024). The chance it is exploited in the next 30 days is estimated at 3.9% (higher than 90% of all known vulnerabilities). Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)3.9%top 9.6% of all CVEs
Exploited in the wildYesCISA KEV since May 14, 2024
Attack toolingNoneno public tooling known

CISA guidance

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

Federal agencies must remediate by Jun 4, 2024.

Official description

Windows MSHTML Platform Security Feature Bypass Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.5820
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.5820
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.5820
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.5820
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.2461
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22000.2960
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.4412
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.3593
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.4412
Microsoft Windows 11 version 22H3 10.0.22631.0 – before 10.0.22631.3593
Microsoft Windows 11 Version 23H2 10.0.22631.0 – before 10.0.22631.3593
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – before 10.0.25398.887
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.20651
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.6981
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.6981
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.6981

Weakness: CWE-20 · Vector: 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

References