CVE-2024-38217
KEVMicrosoft Windows Mark of the Web (MOTW) Protection Mechanism Failure Vulnerability
Description
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.
Windows Mark of the Web Security Feature Bypass Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:LPublishedSep 10, 2024
Last modifiedAug 10, 2026
Added to KEVSep 10, 2024
Remediation dueOct 1, 2024
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38217PatchVendor Advisory
- elastic.co/security-labs/dismantling-smart-app-controlExploitThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38217US Government Resource
0 recent articles mention this CVE
58
Risk assessment · Medium
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 756 days
- CVSS
- 5.4 MEDIUM
- EPSS (30-day exploit probability)
- 10.0% · top 4% of all CVEs
- Weakness
- CWE-693
- Attack vector
- Network, remotely reachable
Recommended actions
- 1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.