{"id":"CVE-2019-5080","aliases":["EUVD-2019-14685","GHSA-753h-jhp3-85mr"],"status":"published","title":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\"...","description":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01866,"percentile":0.7945,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2019-12-18T20:35:41Z","modified":"2026-06-17T02:37:05Z","products":[{"vendor":"wago","product":"pfc_100_firmware"},{"vendor":"wago","product":"pfc_200_firmware"},{"vendor":"wago","product":"wago pfc200"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0872","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-5080"},{"url":"https://github.com/advisories/GHSA-753h-jhp3-85mr"}],"sources":{"cve":[{"id":"CVE-2019-5080","description":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.","status":"published","published":"2019-12-18T20:35:41Z","modified":"2024-08-04T19:47:56.073Z","updated_at":"2026-11-02T14:20:18.746972Z"}],"euvd":[{"id":"EUVD-2019-14685","description":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.","status":"published","published":"2019-12-18T20:35:41Z","modified":"2024-08-04T19:47:56Z","updated_at":"2026-11-03T03:06:53.888525Z"}],"ghsa":[{"id":"GHSA-753h-jhp3-85mr","title":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\"...","description":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.","status":"published","published":"2022-05-24T17:04:05Z","modified":"2023-01-29T05:00:45Z","updated_at":"2026-11-02T14:44:39.355024Z"}],"nvd":[{"id":"CVE-2019-5080","description":"An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.","status":"published","published":"2019-12-18T21:15:14.24Z","modified":"2026-06-17T02:37:05.9Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:05:40.856496Z"}]}}