CVE-2024-29988
Published: 09 April 2024
Summary
CVE-2024-29988 is a high-severity Protection Mechanism Failure (CWE-693) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 1.6% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and SI-3 (Malicious Code Protection).
Deeper analysis
CVE-2024-29988 is a SmartScreen Prompt Security Feature Bypass Vulnerability affecting Microsoft Windows components responsible for displaying security warnings on potentially malicious downloads or web content. The flaw carries a CVSS 3.1 score of 8.8 and is associated with CWE-693, indicating an improper protection mechanism that can be circumvented under network-based attack conditions requiring only user interaction.
An unauthenticated remote attacker can exploit the issue by serving specially crafted content that causes the SmartScreen prompt to be bypassed. Successful exploitation grants the attacker confidentiality, integrity, and availability impacts equivalent to arbitrary code execution or full compromise of the affected system.
Microsoft’s update guide provides patches addressing the bypass, while CISA has added the CVE to its Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. The associated EPSS score has reached a peak of 0.6684 with a current value of 0.6277, reflecting sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-26960
Vulnerability details
SmartScreen Prompt Security Feature Bypass Vulnerability
- CWE(s)
- KEV Date Added
- 30 April 2024
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires timely application of Microsoft patches that close the SmartScreen bypass flaw before exploitation succeeds.
Requires the malicious-code protection capability (SmartScreen) whose prompt-bypass is the root cause of this CVE.
Mandates integrity verification of downloaded content and executables that the bypassed SmartScreen prompt was intended to protect.