{"id":"CVE-2021-31986","aliases":["EUVD-2021-18858","GHSA-qx7f-84h6-wf98"],"status":"published","title":"User controlled parameters related to SMTP notifications are not correctly validated. This can...","description":"User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00805,"percentile":0.57041,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-787"],"published":"2021-10-05T21:45:24Z","modified":"2026-06-17T03:52:38Z","products":[{"vendor":"axis","product":"axis_os"},{"vendor":"axis","product":"axis_os_2016"},{"vendor":"axis","product":"axis_os_2018"},{"vendor":"axis","product":"axis_os_2020"},{"vendor":"axis communications ab","product":"axis os"}],"references":[{"url":"https://www.axis.com/files/tech_notes/CVE-2021-31986.pdf","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31986"},{"url":"https://github.com/advisories/GHSA-qx7f-84h6-wf98"}],"sources":{"cve":[{"id":"CVE-2021-31986","description":"User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.","status":"published","published":"2021-10-05T21:45:24Z","modified":"2024-11-08T08:21:21.927Z","cwes":["CWE-122"],"updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18858","description":"User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.","status":"published","published":"2021-10-05T21:45:24Z","modified":"2024-11-08T08:21:21Z","updated_at":"2026-11-03T00:05:06.878478Z"}],"ghsa":[{"id":"GHSA-qx7f-84h6-wf98","title":"User controlled parameters related to SMTP notifications are not correctly validated. This can...","description":"User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.","status":"published","published":"2022-05-24T19:16:50Z","modified":"2024-11-08T09:30:29Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"medium"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:58:45.881488Z"}],"nvd":[{"id":"CVE-2021-31986","description":"User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.","status":"published","published":"2021-10-05T22:15:07.843Z","modified":"2026-06-17T03:52:38.297Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:06:59.314106Z"}]}}