{"id":"CVE-2026-6205","state":"PUBLISHED","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 ","description":"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 conduct denial-of-service attacks.","publishedAt":"2026-09-18T08:22:15.549Z","updatedAt":"2026-09-18T19:57:02.255Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","source":"synology"},"assigner":"synology","products":["Synology DiskStation Manager (DSM)"],"affected":[{"vendor":"Synology","product":"DiskStation Manager (DSM)","defaultStatus":"affected","versions":[{"version":"7.4","status":"affected","lessThan":"7.4-90075","versionType":"semver"},{"version":"7.3.2","status":"affected","lessThan":"7.3.2-86009-4","versionType":"semver"},{"version":"7.2.2","status":"affected","lessThan":"7.2.2-72806-9","versionType":"semver"},{"version":"7.2.1","status":"affected","lessThan":"7.2.1-69057-12","versionType":"semver"},{"version":"0","status":"unknown","lessThan":"7.2.1","versionType":"semver"}]}],"references":["https://www.synology.com/en-global/security/advisory/Synology_SA_26_13"],"weaknesses":["CWE-73"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/6xxx/CVE-2026-6205.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6205","state":"PUBLISHED","datePublished":"2026-09-18T08:22:15.549Z","dateUpdated":"2026-09-18T19:57:02.255Z","assignerShortName":"synology","assignerOrgId":"db201096-a0cc-46c7-9a55-61d9e221bf01","dateReserved":"2026-04-13T10:51:07.187Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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 conduct denial-of-service attacks."}],"affected":[{"vendor":"Synology","product":"DiskStation Manager (DSM)","defaultStatus":"affected","versions":[{"version":"7.4","status":"affected","lessThan":"7.4-90075","versionType":"semver"},{"version":"7.3.2","status":"affected","lessThan":"7.3.2-86009-4","versionType":"semver"},{"version":"7.2.2","status":"affected","lessThan":"7.2.2-72806-9","versionType":"semver"},{"version":"7.2.1","status":"affected","lessThan":"7.2.1-69057-12","versionType":"semver"},{"version":"0","status":"unknown","lessThan":"7.2.1","versionType":"semver"}]}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_13","name":"Synology-SA-26:13 DSM"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-73","description":"External Control of File Name or Path","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"synology","orgId":"db201096-a0cc-46c7-9a55-61d9e221bf01","dateUpdated":"2026-09-18T08:22:15.549Z"},"credits":[{"lang":"en","type":"finder","value":"DungNBN (@greengrass19000) from Viettel Cyber Security Research Lab (@vcslab) working with Scamman from Trung Tâm Săn Lỗi Lậu Hải Ngoại"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T19:56:51.725125Z","id":"CVE-2026-6205","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-18T19:57:02.255Z"}}]}}}