{"id":"CVE-2019-18930","aliases":["EUVD-2019-8603","GHSA-jvjw-9wvw-vw24"],"status":"published","title":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account)...","description":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03209,"percentile":0.88255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2019-11-13T15:47:08Z","modified":"2026-06-17T02:25:35Z","products":[{"vendor":"western_digital","product":"my_cloud_ex2_ultra_firmware"}],"references":[{"url":"https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txt","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18930"},{"url":"https://github.com/advisories/GHSA-jvjw-9wvw-vw24"}],"sources":{"cve":[{"id":"CVE-2019-18930","description":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.","status":"published","published":"2019-11-13T15:47:08Z","modified":"2024-08-05T02:02:39.856Z","updated_at":"2026-11-02T14:32:23.485011Z"}],"euvd":[{"id":"EUVD-2019-8603","description":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.","status":"published","published":"2019-11-13T15:47:08Z","modified":"2024-08-05T02:02:39Z","updated_at":"2026-11-03T02:40:26.778341Z"}],"ghsa":[{"id":"GHSA-jvjw-9wvw-vw24","title":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account)...","description":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.","status":"published","published":"2022-05-24T17:00:48Z","modified":"2023-01-28T05:07:38Z","updated_at":"2026-11-02T14:44:33.090384Z"}],"nvd":[{"id":"CVE-2019-18930","description":"Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.","status":"published","published":"2019-11-13T16:15:11.207Z","modified":"2026-06-17T02:25:35.74Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:35.052973Z"}]}}