Vulnerability · Published Dec 4, 2025 · Assigned by synology
CVE-2025-29843
Medium 5.4
In plain English
A medium-severity path traversal in Synology Router Manager (SRM) from Synology. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.4%top 66.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability in FileStation thumb cgi allows remote authenticated users to read/write image files.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Synology | Synology Router Manager (SRM) | 1.3 – before 1.3.1-9346-13 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
References
- Synology-SA-25:04 SRM vendor-advisory