{"id":"CVE-2019-9590","aliases":["EUVD-2019-18961","GHSA-fxf8-rfwg-hhhv"],"status":"published","title":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to...","description":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to cause a denial of service (persistent failure mode) by sending a series of \\x19\\xb2\\x00\\x00\\x00\\x06\\x43\\x01\\x00\\xac\\xff\\x00 (aka UID 0x43) requests to TCP port 502.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01811,"percentile":0.78771,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-03-06T16:00:00Z","modified":"2026-06-17T02:44:00Z","products":[{"vendor":"tengcon","product":"t-920_plc_firmware"}],"references":[{"url":"https://github.com/Ni9htMar3/vulnerability/blob/master/PLC/%E8%85%BE%E6%8E%A7/T920_PLC_DOS.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9590"},{"url":"https://github.com/advisories/GHSA-fxf8-rfwg-hhhv"}],"sources":{"cve":[{"id":"CVE-2019-9590","description":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to cause a denial of service (persistent failure mode) by sending a series of \\x19\\xb2\\x00\\x00\\x00\\x06\\x43\\x01\\x00\\xac\\xff\\x00 (aka UID 0x43) requests to TCP port 502.","status":"published","published":"2019-03-06T16:00:00Z","modified":"2024-08-04T21:54:44.835Z","updated_at":"2026-11-02T14:20:20.081405Z"}],"euvd":[{"id":"EUVD-2019-18961","description":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to cause a denial of service (persistent failure mode) by sending a series of \\x19\\xb2\\x00\\x00\\x00\\x06\\x43\\x01\\x00\\xac\\xff\\x00 (aka UID 0x43) requests to TCP port 502.","status":"published","published":"2019-03-06T16:00:00Z","modified":"2024-08-04T21:54:44Z","updated_at":"2026-11-03T03:06:38.242317Z"}],"ghsa":[{"id":"GHSA-fxf8-rfwg-hhhv","title":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to...","description":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to cause a denial of service (persistent failure mode) by sending a series of \\x19\\xb2\\x00\\x00\\x00\\x06\\x43\\x01\\x00\\xac\\xff\\x00 (aka UID 0x43) requests to TCP port 502.","status":"published","published":"2022-05-13T01:08:19Z","modified":"2023-02-01T05:03:17Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:50:02.739665Z"}],"nvd":[{"id":"CVE-2019-9590","description":"An issue was discovered on TENGCONTROL T-920 PLC v5.5 devices. It allows remote attackers to cause a denial of service (persistent failure mode) by sending a series of \\x19\\xb2\\x00\\x00\\x00\\x06\\x43\\x01\\x00\\xac\\xff\\x00 (aka UID 0x43) requests to TCP port 502.","status":"published","published":"2019-03-06T16:29:00.237Z","modified":"2026-06-17T02:44:00.183Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:05:07.268578Z"}]}}