{"id":"CVE-2021-27480","aliases":["EUVD-2021-14234","GHSA-6xq6-9j2p-q9cg"],"status":"published","title":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer...","description":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.","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":0.01269,"percentile":0.70174,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2021-04-27T11:18:12Z","modified":"2026-06-17T03:44:57Z","products":[{"vendor":"deltaww","product":"industrial_automation_commgr"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-110-03","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27480"},{"url":"https://github.com/advisories/GHSA-6xq6-9j2p-q9cg"}],"sources":{"cve":[{"id":"CVE-2021-27480","description":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.","status":"published","published":"2021-04-27T11:18:12Z","modified":"2024-08-03T20:48:17.278Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14234","description":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.","status":"published","published":"2021-04-27T11:18:12Z","modified":"2024-08-03T20:48:17Z","updated_at":"2026-11-03T03:24:48.919164Z"}],"ghsa":[{"id":"GHSA-6xq6-9j2p-q9cg","title":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer...","description":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.","status":"published","published":"2022-05-24T17:48:59Z","modified":"2023-01-29T05:06:31Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:46:02.943866Z"}],"nvd":[{"id":"CVE-2021-27480","description":"Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.","status":"published","published":"2021-04-27T12:15:07.453Z","modified":"2026-06-17T03:44:57.027Z","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-121"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}