Medium severity · published May 27, 2026
CVE-2025-13593
Origin validation error vulnerability in Synology ActiveProtect Agent before 1.1.0-0439 allows local users to write arbitrary files with restricted content and conduct…
5.6
CVSS
0.1%
EPSS
No
On KEV
Description
Origin validation error vulnerability in Synology ActiveProtect Agent before 1.1.0-0439 allows local users to write arbitrary files with restricted content and conduct denial-of-service during installation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
ActiveProtect Agent · Synology
before 1.1.0-0439 · source: vendor, NVD