CVE-2026-28724 Missing authorization in Acronis Cyber Protect 17

What is CVE-2026-28724?

CVE-2026-28724 is a medium-severity missing authorization vulnerability in Acronis Cyber Protect, published on 5 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Unauthorized data access due to insufficient access control validation. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.

Weakness: CWE-863

Which versions are affected by CVE-2026-28724?

It affects 1 product.

Products include Acronis Cyber Protect.

How do I fix CVE-2026-28724?

No fix has been published for CVE-2026-28724 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-28724 being exploited?

There is no known exploitation of CVE-2026-28724 in the wild and no public exploit code.

Other vulnerabilities in Acronis Cyber Protect

• CVE-2025-30411 Auth bypass in Acronis Cyber Protect 15 Critical 10.0
• CVE-2025-30412 Auth bypass in Acronis Cyber Protect 15 Critical 10.0
• CVE-2025-30416 Missing authorization in Acronis Cyber Protect 15 Critical 10.0
• CVE-2026-28710 Auth bypass in Acronis Cyber Protect 17 High 8.1
• CVE-2021-44198 DLL hijacking could lead to local privilege escalation High 7.8

All Acronis Cyber Protect vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-g9c5-vhp6-c68r.