{"id":"CVE-2026-76133","aliases":["EUVD-2026-68612","GHSA-3wc8-w6rh-g37v"],"status":"published","title":"Ebyte NA111-M Use of a Broken or Risky Cryptographic Algorithm","description":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related \noperation. Under conditions where an attacker can manipulate or predict \nthe authentication exchange, the weak construction may reduce the \nassurance provided by the authentication mechanism and facilitate \nunauthorized access.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00397,"percentile":0.34217,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327"],"published":"2026-08-31T15:30:38Z","modified":"2026-10-05T19:26:19Z","products":[{"vendor":"ebyte","product":"ebyte na111-m firmware"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76133"},{"url":"https://github.com/advisories/GHSA-3wc8-w6rh-g37v"}],"sources":{"cve":[{"id":"CVE-2026-76133","title":"Ebyte NA111-M Use of a Broken or Risky Cryptographic Algorithm","description":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related \noperation. Under conditions where an attacker can manipulate or predict \nthe authentication exchange, the weak construction may reduce the \nassurance provided by the authentication mechanism and facilitate \nunauthorized access.","status":"published","published":"2026-08-31T15:30:38.351Z","modified":"2026-10-05T19:26:19.802Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T13:46:32.755125Z"}],"euvd":[{"id":"EUVD-2026-68612","description":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related \noperation. Under conditions where an attacker can manipulate or predict \nthe authentication exchange, the weak construction may reduce the \nassurance provided by the authentication mechanism and facilitate \nunauthorized access.","status":"published","published":"2026-08-31T15:30:38Z","modified":"2026-10-05T19:26:19Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:39.05741Z"}],"ghsa":[{"id":"GHSA-3wc8-w6rh-g37v","title":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related ...","description":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related \noperation. Under conditions where an attacker can manipulate or predict \nthe authentication exchange, the weak construction may reduce the \nassurance provided by the authentication mechanism and facilitate \nunauthorized access.","status":"published","published":"2026-08-31T18:31:29Z","modified":"2026-08-31T18:31:40Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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":"critical"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T15:11:11.962153Z"}],"nvd":[{"id":"CVE-2026-76133","description":"The affected Ebyte \n\nproduct\n uses a deprecated hashing algorithm in an authentication-related \noperation. Under conditions where an attacker can manipulate or predict \nthe authentication exchange, the weak construction may reduce the \nassurance provided by the authentication mechanism and facilitate \nunauthorized access.","status":"published","published":"2026-08-31T16:19:12.24Z","modified":"2026-09-01T17:17:35.01Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:12:42.691315Z"}]}}