What is CVE-2026-28709?

CVE-2026-28709 is a medium-severity vulnerability in Acronis Cyber Protect 17, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-03-06.

How severe is CVE-2026-28709?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Acronis Cyber Protect 17

CVE-2026-28709

Unauthorized resource manipulation due to improper authorization checks. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.

Vulnerability class: Broken Access Control

EPSS: 0.002 (4.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Acronis Cyber Protect 17 — versions unspecified
Acronis Cyber_protect
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@acronis.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28709?: CVE-2026-28709 is a medium-severity vulnerability in Acronis Cyber Protect 17, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-03-06.
How severe is CVE-2026-28709?: Medium severity. CVSS v3 base score is 4.3 out of 10.