{"id":"CVE-2020-12830","aliases":["EUVD-2020-5112","GHSA-hmww-h9vv-9rgj"],"status":"published","title":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry...","description":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03327,"percentile":0.88711,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-10-27T19:32:52Z","modified":"2026-06-17T02:52:23Z","products":[{"vendor":"westerndigital","product":"my_cloud_firmware"}],"references":[{"url":"https://support.wdc.com/downloads.aspx?g=907\u0026lang=en","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12830"},{"url":"https://github.com/advisories/GHSA-hmww-h9vv-9rgj"}],"sources":{"cve":[{"id":"CVE-2020-12830","description":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.","status":"published","published":"2020-10-27T19:32:52Z","modified":"2024-08-04T12:04:22.889Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2020-5112","description":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.","status":"published","published":"2020-10-27T19:32:52Z","modified":"2024-08-04T12:04:22Z","updated_at":"2026-11-03T03:07:39.298733Z"}],"ghsa":[{"id":"GHSA-hmww-h9vv-9rgj","title":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry...","description":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.","status":"published","published":"2022-05-24T17:32:30Z","modified":"2023-01-29T05:04:31Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:34.663559Z"}],"nvd":[{"id":"CVE-2020-12830","description":"Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.","status":"published","published":"2020-10-27T20:15:21.533Z","modified":"2026-06-17T02:52:23.52Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}