{"id":"CVE-2020-27261","aliases":["EUVD-2020-19774","GHSA-5x49-f55r-f2xh"],"status":"published","title":"Omron CX-One","description":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.07937,"percentile":0.94779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2021-02-09T14:09:34Z","modified":"2026-06-17T03:09:04Z","products":[{"vendor":"omron","product":"cx-one"},{"vendor":"omron","product":"cx-position"},{"vendor":"omron","product":"cx-protocol"},{"vendor":"omron","product":"cx-server"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-007-02","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-183/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-185/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27261"},{"url":"https://github.com/advisories/GHSA-5x49-f55r-f2xh"}],"sources":{"cve":[{"id":"CVE-2020-27261","title":"Omron CX-One","description":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.","status":"published","published":"2021-02-09T14:09:34.782Z","modified":"2024-09-17T00:02:18.058Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-19774","description":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.","status":"published","published":"2021-02-09T14:09:34Z","modified":"2024-09-17T00:02:18Z","updated_at":"2026-11-03T00:29:02.472621Z"}],"ghsa":[{"id":"GHSA-5x49-f55r-f2xh","title":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may...","description":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.","status":"published","published":"2022-05-24T17:41:29Z","modified":"2023-01-29T05:05:38Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:50.403728Z"}],"nvd":[{"id":"CVE-2020-27261","description":"The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.","status":"published","published":"2021-02-09T15:15:13.157Z","modified":"2026-06-17T03:09:04.51Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:06:34.188486Z"}]}}