{"id":"CVE-2020-12514","aliases":["EUVD-2020-4816","GHSA-pvhr-37pj-qc85"],"status":"published","title":"Pepper+Fuchs Comtrol IO-Link Master NULL Pointer Dereference","description":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd","severity":{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01026,"percentile":0.64061,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-01-22T19:01:56Z","modified":"2026-06-17T02:51:57Z","products":[{"vendor":"pepper+fuchs","product":"comtrol io-link master"},{"vendor":"pepperl-fuchs","product":"io-link_master_4-eip_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_4-pnio_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_8-eip-l_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_8-eip_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_8-pnio-l_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_8-pnio_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-eip-p_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-eip-t_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-eip_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-pnio-p_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-pnio-t_firmware"},{"vendor":"pepperl-fuchs","product":"io-link_master_dr-8-pnio_firmware"}],"references":[{"url":"https://cert.vde.com/en-us/advisories/vde-2020-038","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12514"},{"url":"https://github.com/advisories/GHSA-pvhr-37pj-qc85"}],"sources":{"cve":[{"id":"CVE-2020-12514","title":"Pepper+Fuchs Comtrol IO-Link Master NULL Pointer Dereference","description":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd","status":"published","published":"2021-01-22T19:01:56.769Z","modified":"2024-09-16T19:40:53.649Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:52.925152Z"}],"euvd":[{"id":"EUVD-2020-4816","description":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd","status":"published","published":"2021-01-22T19:01:56Z","modified":"2024-09-16T19:40:53Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T00:55:20.992168Z"}],"ghsa":[{"id":"GHSA-pvhr-37pj-qc85","title":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer...","description":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd","status":"published","published":"2022-05-24T17:40:03Z","modified":"2023-01-29T05:05:30Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:48.396935Z"}],"nvd":[{"id":"CVE-2020-12514","description":"Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd","status":"published","published":"2021-01-22T19:15:12.3Z","modified":"2026-06-17T02:51:57.03Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:30.596418Z"}]}}