{"id":"CVE-2026-3091","aliases":["EUVD-2026-7405","GHSA-fj46-cfm8-7pc4"],"status":"published","title":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672...","description":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00164,"percentile":0.05669,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-427"],"published":"2026-02-24T02:31:20Z","modified":"2026-06-17T10:43:02Z","products":[{"vendor":"synology","product":"presto_client"},{"vendor":"synology","product":"synology presto client"}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_02","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3091"},{"url":"https://github.com/advisories/GHSA-fj46-cfm8-7pc4"}],"sources":{"cve":[{"id":"CVE-2026-3091","description":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.","status":"published","published":"2026-02-24T02:31:20.298Z","modified":"2026-06-02T08:32:30.493Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T13:48:58.05327Z"}],"euvd":[{"id":"EUVD-2026-7405","description":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.","status":"published","published":"2026-02-24T02:31:20Z","modified":"2026-06-02T08:32:30Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T18:20:56.977213Z"}],"ghsa":[{"id":"GHSA-fj46-cfm8-7pc4","title":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672...","description":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files during installation by placing a malicious DLL in advance in the same directory as the installer.","status":"published","published":"2026-02-24T03:30:20Z","modified":"2026-02-24T03:30:31Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T15:06:21.035092Z"}],"nvd":[{"id":"CVE-2026-3091","description":"An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.","status":"published","published":"2026-02-24T03:16:03.89Z","modified":"2026-06-17T10:43:02.053Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T14:12:06.63895Z"}]}}