CVE-2024-55414HighCVSS 7.8

Windows Motorola Soft Modem Driver Elevation of Privilege Vulnerability

Published
June 2, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2024-55414 →

📋 Description

Microsoft is aware of vulnerabilities in the third party Motorola Soft Modem drivers that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of smserl64.sys and smserial.sys drivers. The drivers have been removed in the January cumulative update. Soft modem hardware dependent on these specific drivers will no longer work on Windows. Microsoft recommends removing any existing dependencies on this hardware.

🎯 Affected products35

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 11 Version 25H2 for x64-based Systems
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • +5 more not shown

✅ Remediation

KB5073723 (Security Update) — fixed build 10.0.17763.8276 KB5073457 (Security Update) — fixed build 10.0.20348.4648 KB5073724 (Security Update) — fixed build 10.0.19044.6809 KB5073724 (Security Update) — fixed build 10.0.19045.6809 KB5073379 (Security Update) — fixed build 10.0.26100.32230 KB5074109 (Security Update) — fixed build 10.0.26200.7623 KB5073455 (Security Update) — fixed build 10.0.22631.6491 KB5073450 (Security Update) — fixed build 10.0.25398.2092 KB5074109 (Security Update) — fixed build 10.0.26100.7623 KB5073722 (Security Update) — fixed build 10.0.14393.8783 KB5073697 (Monthly Rollup) — fixed build 6.0.6003.23717 KB5073700 (Security Only) — fixed build 6.0.6003.23717 KB5073695 (Monthly Rollup) — fixed build 6.1.7601.28117 KB5073699 (Security Only) — fixed build 6.1.7601.28117 KB5073698 (Monthly Rollup) — fixed build 6.2.9200.25868 KB5073696 (Monthly Rollup) — fixed build 6.3.9600.22968

🔗 References (30)