CVE intelligence and bounded remediation

CVE-2021-44204 — Local privilege escalation via named pipe due to improper access control checks

High CVSS 7.8

Local privilege escalation via named pipe due to improper access control checks. The following products are affected: Acronis Cyber Protect 15 (Windows) before build 28035, Acronis Agent (Windows) before build 27147, Acronis Cyber Protect Home Office (Windows) before build 39612, Acronis True Image 2021 (Windows) before build 39287

Severity
High
CVSS
7.8 (3.1)
Published
2022-02-04
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-285

Affected products

  • acronis / true_image / 2021
  • acronis / agent
  • acronis / cyber_protect / 15
  • acronis / cyber_protect_home_office

Showing 4 representative product identities from 11 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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