{"id":"CVE-2024-8935","aliases":["EUVD-2024-49493","GHSA-6rch-pvx5-r93q"],"status":"published","title":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of...","description":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.","severity":{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00522,"percentile":0.44605,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-290"],"published":"2024-11-13T04:10:09Z","modified":"2026-06-17T08:23:35Z","products":[{"vendor":"schneider electric","product":"modicon m340 cpu (part numbers bmxp34*)"},{"vendor":"schneider electric","product":"modicon mc80 (part numbers bmkc80)"},{"vendor":"schneider electric","product":"modicon momentum unity m1e processor (171cbu*)"},{"vendor":"schneider-electric","product":"modicon_m340_bmxp341000"},{"vendor":"schneider-electric","product":"modicon_mc80_bmkc8020301"},{"vendor":"schneider-electric","product":"modicon_momentum_unity_m1e_processor"}],"references":[{"url":"https://download.schneider-electric.com/doc/SEVD-2024-317-02/SEVD-2024-317-02.pdf"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-8935"},{"url":"https://github.com/advisories/GHSA-6rch-pvx5-r93q"}],"sources":{"cve":[{"id":"CVE-2024-8935","description":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.","status":"published","published":"2024-11-13T04:10:09.599Z","modified":"2024-11-13T15:31:54.906Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:34:09.216761Z"}],"euvd":[{"id":"EUVD-2024-49493","description":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.","status":"published","published":"2024-11-13T04:10:09Z","modified":"2024-11-13T15:31:54Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-03T00:05:02.514936Z"}],"ghsa":[{"id":"GHSA-6rch-pvx5-r93q","title":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of...","description":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.","status":"published","published":"2024-11-13T06:30:29Z","modified":"2024-11-13T06:30:35Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:58:49.226785Z"}],"nvd":[{"id":"CVE-2024-8935","description":"CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.","status":"published","published":"2024-11-13T05:15:19.673Z","modified":"2026-06-17T08:23:35.233Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:10:36.931115Z"}]}}