Microsoft September 2024: 3 actively exploited zero-days

CVE-2024-38014: Microsoft Windows Installer contains an improper privilege management vulnerability that could allow an attacker to gain SYSTEM privileges. CVE-2024-38217: Microsoft Windows Mark of the Web (MOTW) contains a protection mechanism failure vulnerability that allows an attacker to bypass MOTW-based defenses. This can result in a limited loss of integrity and availability of security features such as Protected View in Microsoft Office, which rely on MOTW tagging. CVE-2024-38226: Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files. Added to the CISA KEV catalog on 2024-09-10.

Why this severity: CVSS 7.8 (v3.1, CNA), actively exploited (CISA KEV)

Started

Sep 10, 2024

Closed

Sep 10, 2024

CVEs

CVE-2024-38014CVE-2024-38217CVE-2024-38226

• Microsoft
• Windows
• CISA KEV
• Zero-day

Notes & caveats

Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).