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CVE-2024-29988

Microsoft SmartScreen Prompt Security Feature Bypass Vulnerability

Microsoft SmartScreen Prompt
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 30 Apr 2024CISA KEV
Exploit odds (EPSS)45.2%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.17763.5696Also 10.0.20348.2402, 10.0.22000.2899 and 5 moreCVE List
Federal deadline21 May 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

  • 10.0.17763.5696Windows 10 Version 1809CVE List
  • 10.0.17763.5696Windows Server 2019CVE List
  • 10.0.17763.5696Windows Server 2019 (Server Core installation)CVE List
  • 10.0.20348.2402Windows Server 2022CVE List
  • 10.0.22000.2899Windows 11 version 21H2CVE List
  • 10.0.19044.4291Windows 10 Version 21H2CVE List
Show all 11 fixed versions
  • 10.0.22621.3447Windows 11 version 22H2CVE List
  • 10.0.19045.4291Windows 10 Version 22H2CVE List
  • 10.0.22631.3447Windows 11 version 22H3CVE List
  • 10.0.22631.3447Windows 11 Version 23H2CVE List
  • 10.0.25398.830Windows Server 2022, 23H2 Edition (Server Core installation)CVE 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. 9 Apr 2024, 17:00 UTCPublishedCVE List
  2. 30 Apr 2024Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 12

  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.5696CVE List
  • Windows 10 Version 1809affected: 10.0.0 before 10.0.17763.5696CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.5696CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.5696CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.2402CVE List
  • Windows 11 version 21H2affected: 10.0.0 before 10.0.22000.2899CVE List
  • Windows 10 Version 21H2affected: 10.0.19043.0 before 10.0.19044.4291CVE List
  • Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.3447CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.4291CVE List
  • Windows 11 version 22H3affected: 10.0.22631.0 before 10.0.22631.3447CVE List
  • Windows 11 Version 23H2affected: 10.0.22631.0 before 10.0.22631.3447CVE List
  • Windows Server 2022, 23H2 Edition (Server Core installation)affected: 10.0.25398.0 before 10.0.25398.830CVE List

References 3