CVE intelligence and bounded remediation

CVE-2023-41743 — Local privilege escalation due to insecure driver communication port permissions

High CVSS 8.8

Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40278, Acronis Cyber Protect Cloud Agent (Windows) before build 31637, Acronis Cyber Protect 15 (Windows) before build 35979, Acronis True Image OEM (Windows) before build 42575.

Severity
High
CVSS
8.8 (3.0)
Published
2023-08-31
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-269

Affected products

  • acronis / agent
  • acronis / cyber_protect / 15
  • acronis / cyber_protect_home_office
  • acronis / cyber_protect_home_office / 39900
  • acronis / cyber_protect_home_office / 40107
  • acronis / cyber_protect_home_office / 40173

Showing 6 representative product identities from 12 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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