Incorrect default permissions in Acronis Cyber Protect 17
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Acronis | Acronis Cyber Protect 17 | before 41186 | 41186 | Patch available | CNA |
| Acronis | Acronis Cyber Protect Cloud Agent | before 41124 | 41124 | Patch available | CNA |
| Acronis | Acronis True Image | before 42902 | 42902 | Patch available | CNA |
Remediation
- Fix · CNA Acronis Cyber Protect 17 (Acronis) Fixed in 41186
- Fix · CNA Acronis Cyber Protect Cloud Agent (Acronis) Fixed in 41124
- Fix · CNA Acronis True Image (Acronis) Fixed in 42902
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Acronis Cyber Protect 17 41186
21 records Highest priority Priority MEDIUM 1 MEDIUM, 20 LOW
Other records, highest priority first
- TI-2026-22921 Weak authentication in Acronis Cyber Protect 17Priority MEDIUM 43
- TI-2026-22929 Denial of service due to insufficient input validation in authentication logging.Priority LOW 39
- TI-2026-22933 Local privilege escalation due to improper soft link handling.Priority LOW 33
- Release ·
Acronis Cyber Protect Cloud Agent 41124
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2025-10812 Uncontrolled search path in Acronis Cyber Protect Cloud AgentPriority LOW 33
- TI-2025-10811 Missing authorization in Acronis Cyber Protect 17Priority LOW 30
- TI-2025-10810 Incorrect permission assignment in Acronis Cyber Protect Cloud AgentPriority LOW 19
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28727
- 2026-10-03 Alias added: GHSA-2qwf-43v4-fqqq
References
Advisory 1
More Acronis Agent vulnerabilities
- TI-2022-22414 Improper privilege management in Acronis Cyber Protect Home Office CVSS 3.1HIGH 7.8
- TI-2023-22158 Improper privilege management in Acronis Cyber Protect Home Office CVSS 3.1HIGH 7.8
- TI-2023-22159 Improper signature verification in Acronis Agent CVSS 3.1HIGH 7.8
- TI-2022-22415 Improper privilege management in Acronis Agent CVSS 3.1HIGH 7.8
- TI-2022-13037 Information disclosure in Acronis Cyber Protect 15 CVSS 3.1HIGH 7.5
- TI-2021-13796 Sensitive information in log files in Acronis Agent CVSS 3.1HIGH 7.5
Sources
- CVE-2026-28727 · CVE Program
- CVE-2026-28727 · NVD
- FIRST EPSS
- GHSA-2qwf-43v4-fqqq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences