{"id":"CVE-2026-6205","title":"An external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write arbitrary files and c…","summary":"An external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write arbitrary files and c…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-73"],"vendor":"Synology","product":"DiskStation Manager (DSM)","affected":["diskstation_manager_dsm >= 7.4 < 7.4-90075","diskstation_manager_dsm >= 7.3.2 < 7.3.2-86009-4","diskstation_manager_dsm >= 7.2.2 < 7.2.2-72806-9","diskstation_manager_dsm >= 7.2.1 < 7.2.1-69057-12"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:17:21.250","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-6205","references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_13","label":"security@synology.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T19:56:51.725125Z"},"epss":0.00318,"epssPercentile":0.24884,"ingestedAt":"2026-09-18T08:38:04.115Z","slug":"CVE-2026-6205","body":"## Overview\n\nAn external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write arbitrary files and conduct denial-of-service attacks.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}