{"id":"CVE-2025-7921","aliases":["EUVD-2025-22058","GHSA-r7rh-8pmr-qq23"],"status":"published","title":"ASKEY｜modem - Stack-based Buffer Overflow","description":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.","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":"2026-11-11","score":0.00955,"percentile":0.61835,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2025-07-21T06:41:57Z","modified":"2026-06-17T10:05:58Z","products":[{"vendor":"askey","product":"rtf8207w"},{"vendor":"askey","product":"rtf8217"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-10268-1583b-1.html","tags":["third-party-advisory"]},{"url":"https://www.twcert.org.tw/en/cp-139-10269-c9839-2.html","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-7921"},{"url":"https://github.com/advisories/GHSA-r7rh-8pmr-qq23"}],"sources":{"cve":[{"id":"CVE-2025-7921","title":"ASKEY｜modem - Stack-based Buffer Overflow","description":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.","status":"published","published":"2025-07-21T06:41:57.38Z","modified":"2025-07-21T12:35:59.137Z","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-121"],"updated_at":"2026-11-02T14:32:51.544289Z"}],"euvd":[{"id":"EUVD-2025-22058","description":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.","status":"published","published":"2025-07-21T06:41:57Z","modified":"2025-07-21T12:35:59Z","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":"2026-11-02T20:32:06.504899Z"}],"ghsa":[{"id":"GHSA-r7rh-8pmr-qq23","title":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing...","description":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.","status":"published","published":"2025-07-21T09:33:26Z","modified":"2025-07-21T09:33:32Z","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"},{"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"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:03:04.468862Z"}],"nvd":[{"id":"CVE-2025-7921","description":"Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.","status":"published","published":"2025-07-21T07:15:25.3Z","modified":"2026-06-17T10:05:58.363Z","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-121"],"updated_at":"2026-11-02T14:11:19.382856Z"}]}}