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CVE-2024-21351

Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
7.6High
ExploitationExploited in the wildAdded to KEV 13 Feb 2024CISA KEV
Exploit odds (EPSS)27.8%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.10240.20469Also 10.0.14393.6709, 10.0.17763.5458 and 6 moreCVE List
Federal deadline5 Mar 2024Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

  • 10.0.10240.20469Windows 10 Version 1507CVE List
  • 10.0.14393.6709Windows 10 Version 1607CVE List
  • 10.0.17763.5458Windows 10 Version 1809CVE List
  • 10.0.19044.4046Windows 10 Version 21H2CVE List
  • 10.0.19045.4046Windows 10 Version 22H2CVE List
  • 10.0.22000.2777Windows 11 version 21H2CVE List
Show all 12 fixed versions
  • 10.0.22621.3155Windows 11 version 22H2CVE List
  • 10.0.22631.3155Windows 11 version 22H3CVE List
  • 10.0.22631.3155Windows 11 Version 23H2CVE List
  • 10.0.14393.6709Windows Server 2016CVE List
  • 10.0.17763.5458Windows Server 2019CVE List
  • 10.0.20348.2322Windows Server 2022CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 13 Feb 2024Added to CISA KEVCISA KEV
  2. 13 Feb 2024, 18:02 UTCPublishedCVE List

Description

Microsoft 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.

Text from CVE List

Affected versions 13

  • Windows 10 Version 1507affected: 10.0.10240.0 before 10.0.10240.20469CVE List
  • Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.6709CVE List
  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.5458CVE List
  • Windows 10 Version 1809affected: 10.0.0 before 10.0.17763.5458CVE List
  • Windows 10 Version 21H2affected: 10.0.19043.0 before 10.0.19044.4046CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.4046CVE List
  • Windows 11 version 21H2affected: 10.0.0 before 10.0.22000.2777CVE List
  • Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.3155CVE List
  • Windows 11 version 22H3affected: 10.0.22631.0 before 10.0.22631.3155CVE List
  • Windows 11 Version 23H2affected: 10.0.22631.0 before 10.0.22631.3155CVE List
  • Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.6709CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.5458CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.2322CVE List

References 4