{"id":"CVE-2021-30065","aliases":["EUVD-2021-17009","GHSA-264c-27mg-g32w"],"status":"published","title":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21,...","description":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:N/I:H/PR:N/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0088,"percentile":0.59546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-04-03T21:59:18Z","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":"tcsefea23f3f20_firmware"},{"vendor":"schneider-electric","product":"tcsefea23f3f21_firmware"},{"vendor":"schneider-electric","product":"tcsefea23f3f22_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-2021-30065"},{"url":"https://github.com/advisories/GHSA-264c-27mg-g32w"}],"sources":{"cve":[{"id":"CVE-2021-30065","description":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.","status":"published","published":"2022-04-03T21:59:18Z","modified":"2024-08-03T22:24:59.526Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:N/I:H/PR:N/S:U/UI:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-17009","description":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.","status":"published","published":"2022-04-03T21:59:18Z","modified":"2024-08-03T22:24:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:N/I:H/PR:N/S:U/UI:N","level":"high"}],"updated_at":"2026-11-03T03:24:43.413555Z"}],"ghsa":[{"id":"GHSA-264c-27mg-g32w","title":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21,...","description":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.","status":"published","published":"2022-04-05T00:00:29Z","modified":"2023-01-27T05:01:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T14:41:52.138061Z"}],"nvd":[{"id":"CVE-2021-30065","description":"On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.","status":"published","published":"2022-04-03T22:15:14.943Z","modified":"2026-06-17T03:49:39.323Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}