CVE-2024-29988
KEVMicrosoft SmartScreen Prompt Security Feature Bypass Vulnerability
Description
Microsoft SmartScreen Prompt contains a security feature bypass vulnerability that allows an attacker to bypass the Mark of the Web (MotW) feature. This vulnerability can be chained with CVE-2023-38831 and CVE-2024-21412 to execute a malicious file.
SmartScreen Prompt Security Feature Bypass Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedApr 9, 2024
Last modifiedJun 17, 2026
Added to KEVApr 30, 2024
Remediation dueMay 21, 2024
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29988PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-29988US Government Resource
0 recent articles mention this CVE
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Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 888 days
- CVSS
- 8.8 HIGH
- EPSS (30-day exploit probability)
- 45.2% · top 1% 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.