{"id":"CVE-2023-26921","aliases":["EUVD-2023-30712","GHSA-fcmf-jqfc-733w"],"status":"published","title":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary...","description":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.","severity":{"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":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.02692,"percentile":0.86096,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2023-04-04T00:00:00Z","modified":"2026-06-17T05:43:57Z","products":[{"vendor":"quectel","product":"ag550qcn_firmware"}],"references":[{"url":"https://github.com/closethe/AG550QCN_CommandInjection_ql_atfwd/blob/main/README.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26921"},{"url":"https://github.com/advisories/GHSA-fcmf-jqfc-733w"}],"sources":{"cve":[{"id":"CVE-2023-26921","description":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.","status":"published","published":"2023-04-04T00:00:00Z","modified":"2025-02-13T15:30:29.146Z","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","assessor":"adp"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:35:15.434947Z"}],"euvd":[{"id":"EUVD-2023-30712","description":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.","status":"published","published":"2023-04-04T00:00:00Z","modified":"2025-02-13T15:30:29Z","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"}],"updated_at":"2026-11-03T00:03:55.403392Z"}],"ghsa":[{"id":"GHSA-fcmf-jqfc-733w","title":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary...","description":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.","status":"published","published":"2023-04-04T15:30:26Z","modified":"2023-04-18T05:07:40Z","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"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:54:30.910714Z"}],"nvd":[{"id":"CVE-2023-26921","description":"OS Command Injection vulnerability in quectel AG550QCN allows attackers to execute arbitrary commands via ql_atfwd.","status":"published","published":"2023-04-04T15:15:09.143Z","modified":"2026-06-17T05:43:57.21Z","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","assessor":"primary"},{"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-78"],"updated_at":"2026-11-02T14:07:51.883939Z"}]}}