Auth bypass in Acronis Cyber Protect 17
CVE-2026-28720
Unauthorized modification of settings due to insufficient authorization checks. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Acronis Cyber Protect 17 — versions unspecified
- Acronis Cyber Protect
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
References
- security-advisory.acronis.com/advisories/SEC-8379 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-28720?
- CVE-2026-28720 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-2026-28720?
- Medium severity. CVSS v3 base score is 4.3 out of 10.