Description
Local privilege escalation due to insecure Unix socket permissions. The following products are affected: Acronis Cyber Protect 17 (macOS) before build 41186, Acronis Cyber Protect Cloud Agent (macOS) before build 41124, Acronis True Image (macOS) before build 42902.
Published: 2026-03-05
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Patch
AI Analysis

Impact

Acronis products running on macOS provide a Unix socket with permissions that are too permissive, allowing a local user to send specially crafted requests that elevate the process to root privileges. This vulnerability is categorized as CWE-276, Incorrect Default Permissions, and can lead to full system compromise if an attacker gains local access.

Affected Systems

The affected products are Acronis Cyber Protect 17 for macOS before build 41186, Acronis Cyber Protect Cloud Agent for macOS before build 41124, and Acronis True Image for macOS before build 42902. Users of these builds on macOS must verify the version and ensure they are running a patched release.

Risk and Exploitability

The CVSS score of 7.8 indicates a medium to high severity, while the EPSS score of less than 1% suggests that exploitation is currently unlikely but not impossible. The vulnerability is not listed in the CISA KEV catalog, which implies it has not yet been widely exploited in the wild. The likely attack vector is local: an attacker who can execute code on the machine must exploit the improper socket permissions. Once accessed, the attacker can gain system-level privileges on the affected macOS instances.

Generated by OpenCVE AI on April 15, 2026 at 19:53 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Acronis Cyber Protect 17 to build 41186 or later, Acronis Cyber Protect Cloud Agent to build 41124 or later, or Acronis True Image to build 42902 or later, as recommended by the vendor.
  • If a patch cannot be applied immediately, modify the permissions on the vulnerable Unix socket to allow access only for privileged users, reducing the risk of local privilege escalation.
  • As a temporary containment measure, stop or remove the Acronis service that creates the socket until an official fix is deployed.

Generated by OpenCVE AI on April 15, 2026 at 19:53 UTC.

Tracking

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Advisories

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History

Wed, 15 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Title Local Privilege Escalation via Improper Unix Socket Permissions in Acronis Cyber Protect

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Description Local privilege escalation due to insecure Unix socket permissions. The following products are affected: Acronis Cyber Protect 17 (macOS) before build 41186, Acronis Cyber Protect Cloud Agent (macOS) before build 41124. Local privilege escalation due to insecure Unix socket permissions. The following products are affected: Acronis Cyber Protect 17 (macOS) before build 41186, Acronis Cyber Protect Cloud Agent (macOS) before build 41124, Acronis True Image (macOS) before build 42902.

Fri, 13 Mar 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Acronis agent
Acronis cyber Protect
Apple
Apple macos
CPEs cpe:2.3:a:acronis:agent:*:*:*:*:*:*:*:*
cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Acronis agent
Acronis cyber Protect
Apple
Apple macos

Mon, 09 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 06 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Acronis
Acronis acronis Cyber Protect 17
Acronis cyber Protect Cloud Agent
Vendors & Products Acronis
Acronis acronis Cyber Protect 17
Acronis cyber Protect Cloud Agent

Fri, 06 Mar 2026 00:00:00 +0000

Type Values Removed Values Added
Description Local privilege escalation due to insecure Unix socket permissions. The following products are affected: Acronis Cyber Protect 17 (macOS) before build 41186, Acronis Cyber Protect Cloud Agent (macOS) before build 41124.
Weaknesses CWE-276
References
Metrics cvssV3_0

{'score': 7.8, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Acronis Acronis Cyber Protect 17 Agent Cyber Protect Cyber Protect Cloud Agent
Apple Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: Acronis

Published:

Updated: 2026-04-02T17:05:54.369Z

Reserved: 2026-03-03T02:29:03.754Z

Link: CVE-2026-28727

cve-icon Vulnrichment

Updated: 2026-03-09T13:47:53.593Z

cve-icon NVD

Status : Modified

Published: 2026-03-06T00:16:13.923

Modified: 2026-04-02T18:16:27.110

Link: CVE-2026-28727

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T20:00:06Z

Weaknesses