{"id":"CVE-2025-29843","title":"A vulnerability in FileStation thumb cgi allows remote authenticated users to read/write image files.","summary":"A vulnerability in FileStation thumb cgi allows remote authenticated users to read/write image files.","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-22"],"vendor":"synology","product":"router_manager","affected":["router_manager >= 1.3, < 1.3.1-9346","router_manager = 1.3.1-9346"],"patched":["router_manager 1.3.1-9346"],"published":"2025-12-04","updated":"2026-09-25","sourceUpdated":"2026-09-25T23:10:00.463","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-29843","references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_25_04","label":"security@synology.com"}],"tags":["nvd"],"epss":0.00367,"epssPercentile":0.27895,"ingestedAt":"2026-09-25T23:21:16.874Z","slug":"CVE-2025-29843","body":"## Overview\n\nA vulnerability in FileStation thumb cgi allows remote authenticated users to read/write image files.\n\n## Affected\n\n- `router_manager >= 1.3, < 1.3.1-9346`\n- `router_manager = 1.3.1-9346`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `router_manager 1.3.1-9346`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}