What’s Vulnerable › Vulnerabilities

CVE-2025-29843

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-04 · updated 2026-09-25
• Weakness: CWE-22

Description

A vulnerability in FileStation thumb cgi allows remote authenticated users to read/write image files.

Affected products

• Synology Router Manager (SRM): from 1.3 before 1.3.1-9346; 1.3.1-9346, 1.3.1-9346-update1, 1.3.1-9346-update10, 1.3.1-9346-update11, 1.3.1-9346-update12, 1.3.1-9346-update2 (+7) — fixed in 1.3.1-9346

How to fix

Upgrade to a fixed version: Synology Router Manager (SRM) 1.3.1-9346. Check the vendor advisory for mitigations.

References

• https://www.synology.com/en-global/security/advisory/Synology_SA_25_04

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