CVE-2026-28727 Privilege escalation in Acronis Cyber Protect 17
Local attackers can escalate privileges via insecure Unix socket permissions in Acronis backup software on macOS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28727?
CVE-2026-28727 is a high-severity vulnerability in Acronis Cyber Protect, published on 5 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-276
Which versions are affected by CVE-2026-28727?
It affects 2 products.
Products include Acronis Agent, Acronis Cyber Protect.
How do I fix CVE-2026-28727?
No fix has been published for CVE-2026-28727 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28727 being exploited?
There is no known exploitation of CVE-2026-28727 in the wild and no public exploit code.
Other vulnerabilities in Acronis Cyber Protect
- CVE-2022-45451 Privilege escalation in Acronis Agent
- CVE-2023-41743 Privilege escalation in Acronis Cyber Protect 15
- CVE-2023-41744 Privilege escalation in Acronis Agent
- CVE-2021-44204 Local privilege escalation via named pipe due to improper access control checks
- CVE-2022-24113 Local privilege escalation due to excessive permissions assigned to child processes
Sources
Also known as GHSA-2qwf-43v4-fqqq.