{"id":"CVE-2021-20701","aliases":["EUVD-2021-8116","GHSA-pm2r-r7fg-8fg9"],"status":"published","title":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 1.0 for Windows and later,...","description":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.","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":"2026-11-11","score":0.02142,"percentile":0.82296,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2021-11-02T23:30:21Z","modified":"2026-06-17T03:34:17Z","products":[{"vendor":"nec","product":"clusterpro_x"},{"vendor":"nec","product":"clusterpro_x_singleserversafe"},{"vendor":"nec","product":"expresscluster_x"},{"vendor":"nec","product":"expresscluster_x_singleserversafe"},{"vendor":"nec corporation","product":"clusterpro x"}],"references":[{"url":"https://jpn.nec.com/security-info/secinfo/nv21-015_en.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20701"},{"url":"https://github.com/advisories/GHSA-pm2r-r7fg-8fg9"}],"sources":{"cve":[{"id":"CVE-2021-20701","description":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.","status":"published","published":"2021-11-02T23:30:21Z","modified":"2024-08-03T17:45:45.444Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8116","description":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.","status":"published","published":"2021-11-02T23:30:21Z","modified":"2024-08-03T17:45:45Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-pm2r-r7fg-8fg9","title":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 1.0 for Windows and later,...","description":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 1.0 for Windows and later, EXPRESSCLUSTER X 1.0 for Windows and later allows attacker to remote code execution via a network.","status":"published","published":"2022-05-24T19:19:39Z","modified":"2023-01-30T05:03:17Z","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"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:48.522337Z"}],"nvd":[{"id":"CVE-2021-20701","description":"Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.","status":"published","published":"2021-11-03T00:15:07.71Z","modified":"2026-06-17T03:34:17.057Z","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-120"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}