High severity · published May 27, 2026
CVE-2025-30028
A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files
8.6
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AB
Active Backup for Business · Synology
before 2.7.1-3234; before 2.7.1-13234; before 2.7.1-23234 · source: vendor, NVD