{"id":"CVE-2023-35086","aliases":["EUVD-2023-39121","GHSA-r4fx-9v33-wcf4"],"status":"published","title":"ASUS RT-AX56U V2 \u0026 RT-AC86U - Format String -1","description":"It is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.\n\nThis issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.38758,"percentile":0.98594,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-134"],"published":"2023-07-21T06:32:20Z","modified":"2026-06-17T06:04:24Z","exploits":[{"source":"pocgithub","id":"tin-z/CVE-2023-35086-POC","title":"tin-z/CVE-2023-35086-POC","date":"2023-07-25","url":"https://github.com/tin-z/CVE-2023-35086-POC"}],"products":[{"vendor":"asus","product":"rt-ac86u"},{"vendor":"asus","product":"rt-ac86u_firmware"},{"vendor":"asus","product":"rt-ax56u v2"},{"vendor":"asus","product":"rt-ax56u_v2"},{"vendor":"asus","product":"rt-ax56u_v2_firmware"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-7240-a5f96-1.html","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-35086"},{"url":"https://github.com/advisories/GHSA-r4fx-9v33-wcf4"}],"sources":{"cve":[{"id":"CVE-2023-35086","title":"ASUS RT-AX56U V2 \u0026 RT-AC86U - Format String -1","description":"\nIt is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.\n\nThis issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.\n\n","status":"published","published":"2023-07-21T06:32:20.831Z","modified":"2024-10-24T14:20:09.783Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T14:35:33.794347Z"}],"euvd":[{"id":"EUVD-2023-39121","description":"\nIt is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.\n\nThis issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.\n\n","status":"published","published":"2023-07-21T06:32:20Z","modified":"2024-10-24T14:20:09Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:05:20.595169Z"}],"ghsa":[{"id":"GHSA-r4fx-9v33-wcf4","title":"\nIt is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This...","description":"\nIt is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. An unauthenticated remote attacker without privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.\n\nThis issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.\n\n","status":"published","published":"2023-07-21T09:30:55Z","modified":"2024-03-27T09:30:40Z","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-134"],"updated_at":"2026-11-02T14:55:43.592151Z"}],"nvd":[{"id":"CVE-2023-35086","description":"\nIt is identified a format string vulnerability in ASUS RT-AX56U V2 \u0026 RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.\n\nThis issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.\n\n","status":"published","published":"2023-07-21T07:15:10.143Z","modified":"2026-06-17T06:04:24.273Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T14:08:17.044696Z"}]}}