{"id":"CVE-2026-40531","title":"An integer overflow or wraparound vulnerability in File Operation in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to conduct limited denial-of-service attacks.","summary":"An integer overflow or wraparound vulnerability in File Operation in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to conduct limited denial-of-service attacks.","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-190"],"vendor":"Synology","product":"DiskStation Manager (DSM)","affected":["diskstation_manager_dsm >= 7.3 < 7.3.2-86009-2","diskstation_manager_dsm >= 7.2.2 < 7.2.2-72806-7","diskstation_manager_dsm >= 7.2.1 < 7.2.1-69057-10"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:17:15.743","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40531","references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_06","label":"security@synology.com"}],"tags":["nvd","cve.org"],"epss":0.00333,"epssPercentile":0.26642,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T19:09:17.165295Z"},"ingestedAt":"2026-09-18T08:38:04.111Z","slug":"CVE-2026-40531","body":"## Overview\n\nAn integer overflow or wraparound vulnerability in File Operation in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to conduct limited denial-of-service attacks.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}