All vulnerabilities
CVE-2023-24880

Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
4.4Medium
ExploitationExploited in the wildAdded to KEV 14 Mar 2023. Known ransomware useCISA KEV
Exploit odds (EPSS)78.0%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.17763.4131Also 10.0.20348.1607, 10.0.19042.2728 and 5 moreCVE List
Federal deadline4 Apr 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

  • 10.0.17763.4131Windows 10 Version 1809CVE List
  • 10.0.17763.4131Windows Server 2019CVE List
  • 10.0.17763.4131Windows Server 2019 (Server Core installation)CVE List
  • 10.0.20348.1607Windows Server 2022CVE List
  • 10.0.19042.2728Windows 10 Version 20H2CVE List
  • 10.0.22000.1696Windows 11 version 21H2CVE List
Show all 12 fixed versions
  • 10.0.19044.2728Windows 10 Version 21H2CVE List
  • 10.0.22621.1413Windows 11 version 22H2CVE List
  • 10.0.19045.2728Windows 10 Version 22H2CVE List
  • 10.0.14393.5786Windows 10 Version 1607CVE List
  • 10.0.14393.5786Windows Server 2016CVE List
  • 10.0.14393.5786Windows Server 2016 (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. 14 Mar 2023Added to CISA KEVCISA KEV
  2. 14 Mar 2023, 16:55 UTCPublishedCVE List

Description

Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.

Text from CVE List

Affected versions 13

  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.4131CVE List
  • Windows 10 Version 1809affected: 10.0.0 before 10.0.17763.4131CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.4131CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.4131CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.1607CVE List
  • Windows 10 Version 20H2affected: 10.0.0 before 10.0.19042.2728CVE List
  • Windows 11 version 21H2affected: 10.0.0 before 10.0.22000.1696CVE List
  • Windows 10 Version 21H2affected: 10.0.19043.0 before 10.0.19044.2728CVE List
  • Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.1413CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.2728CVE List
  • Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.5786CVE List
  • Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.5786CVE List
  • Windows Server 2016 (Server Core installation)affected: 10.0.14393.0 before 10.0.14393.5786CVE List

References 4