{"id":"CVE-2021-30063","aliases":["EUVD-2021-17007","GHSA-922p-95r7-82vf"],"status":"published","title":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon...","description":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00999,"percentile":0.63236,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-04-03T21:52:45Z","modified":"2026-06-17T03:49:39Z","products":[{"vendor":"belden","product":"eagle_20_tofino_943_987-501-tx\\/tx_firmware"},{"vendor":"belden","product":"eagle_20_tofino_943_987-502_-tx\\/mm_firmware"},{"vendor":"belden","product":"eagle_20_tofino_943_987-504-mm\\/tx_firmware"},{"vendor":"belden","product":"eagle_20_tofino_943_987-505-mm\\/mm_firmware"},{"vendor":"belden","product":"tofino_argon_fa-tsa-100-tx\\/tx_firmware"},{"vendor":"belden","product":"tofino_argon_fa-tsa-220-mm\\/mm_firmware"},{"vendor":"belden","product":"tofino_argon_fa-tsa-220-mm\\/tx_firmware"},{"vendor":"belden","product":"tofino_argon_fa-tsa-220-tx\\/mm_firmware"},{"vendor":"belden","product":"tofino_argon_fa-tsa-220-tx\\/tx_firmware"},{"vendor":"belden","product":"tofino_xenon_security_appliance_firmware"},{"vendor":"schneider-electric","product":"tcsefm0000_firmware"}],"references":[{"url":"https://www.belden.com/support/security-assurance","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-05","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30063"},{"url":"https://github.com/advisories/GHSA-922p-95r7-82vf"}],"sources":{"cve":[{"id":"CVE-2021-30063","description":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.","status":"published","published":"2022-04-03T21:52:45Z","modified":"2024-08-03T22:24:59.006Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17007","description":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.","status":"published","published":"2022-04-03T21:52:45Z","modified":"2024-08-03T22:24:59Z","updated_at":"2026-11-03T03:24:43.413555Z"}],"ghsa":[{"id":"GHSA-922p-95r7-82vf","title":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon...","description":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.","status":"published","published":"2022-04-05T00:00:29Z","modified":"2023-01-27T05:01:26Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:41:53.704212Z"}],"nvd":[{"id":"CVE-2021-30063","description":"On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.","status":"published","published":"2022-04-03T22:15:14.857Z","modified":"2026-06-17T03:49:39.063Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/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":"2026-11-02T14:07:05.581807Z"}]}}