Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

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Summary

CVECVE-2024-21351
StatePUBLISHED
AssignerUnknown
Source PriorityEnrichment-only fallback
Published2024-02-13 00:00:00 UTC
Updated2026-04-02 17:47:12 UTC
DescriptionMicrosoft Windows SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the SmartScreen user experience and inject code to potentially gain code execution, which could lead to some data exposure, lack of system availability, or both.

Risk And Classification

EPSS: 0.131590000 probability, percentile 0.941000000 (date 2026-04-03)

CISA KEV: Listed on 2024-02-13; due 2024-03-05; ransomware use Unknown

CISA Known Exploited Vulnerability

VendorMicrosoft
ProductWindows
NameMicrosoft Windows SmartScreen Security Feature Bypass Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttps://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-21351; https://nvd.nist.gov/vuln/detail/CVE-2024-21351

References

ReferenceSourceLinkTags
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 92111 Microsoft Windows Security Update for February 2024
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