{"id":"CVE-2023-27989","aliases":["EUVD-2023-31714","GHSA-x86w-xv82-wrpx"],"status":"published","title":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to...","description":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to  V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01016,"percentile":0.63592,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2023-06-05T11:02:54Z","modified":"2026-06-17T05:46:19Z","products":[{"vendor":"zyxel","product":"lte7480-m804_firmware"},{"vendor":"zyxel","product":"lte7490-m904_firmware"},{"vendor":"zyxel","product":"nebula_nr7101_firmware"},{"vendor":"zyxel","product":"nr7101 firmware"},{"vendor":"zyxel","product":"nr7101_firmware"}],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-4g-lte-and-5g-nr-outdoor-routers","tags":["vendor-advisory","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27989"},{"url":"https://github.com/advisories/GHSA-x86w-xv82-wrpx"}],"sources":{"cve":[{"id":"CVE-2023-27989","description":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to  V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.","status":"published","published":"2023-06-05T11:02:54.929Z","modified":"2025-01-08T17:19:22.83Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:26.63732Z"}],"euvd":[{"id":"EUVD-2023-31714","description":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to  V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.","status":"published","published":"2023-06-05T11:02:54Z","modified":"2025-01-08T17:19:22Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:23.485796Z"}],"ghsa":[{"id":"GHSA-x86w-xv82-wrpx","title":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to...","description":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to  V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.","status":"published","published":"2023-06-05T12:30:15Z","modified":"2024-04-04T04:31:48Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:56:24.450325Z"}],"nvd":[{"id":"CVE-2023-27989","description":"A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to  V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.","status":"published","published":"2023-06-05T12:15:09.36Z","modified":"2026-06-17T05:46:19.597Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:05.329837Z"}]}}