{"id":"CVE-2026-3040","aliases":["EUVD-2026-7476","GHSA-9xx2-jmjv-w5vp"],"status":"published","title":"DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection","description":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.10148,"percentile":0.95686,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77","CWE-78"],"published":"2026-02-23T22:02:07Z","modified":"2026-06-17T10:42:55Z","products":[{"vendor":"draytek","product":"vigor 300b"},{"vendor":"draytek","product":"vigor300b_firmware"}],"references":[{"url":"https://vuldb.com/?id.347394","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?ctiid.347394","tags":["signature","permissions-required","Permissions Required","Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?submit.757126","tags":["third-party-advisory","Third Party Advisory","VDB Entry"]},{"url":"https://github.com/master-abc/cve/issues/42","tags":["exploit","issue-tracking","Exploit","Issue Tracking"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3040"},{"url":"https://github.com/advisories/GHSA-9xx2-jmjv-w5vp"}],"sources":{"cve":[{"id":"CVE-2026-3040","title":"DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection","description":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2026-02-23T22:02:07.526Z","modified":"2026-02-25T15:37:21.493Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"3.0","score":4.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-78","CWE-77"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-7476","description":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2026-02-23T22:02:07Z","modified":"2026-02-25T15:37:21Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T19:48:29.128374Z"}],"ghsa":[{"id":"GHSA-9xx2-jmjv-w5vp","title":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function...","description":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2026-02-24T00:31:33Z","modified":"2026-02-26T18:31:36Z","cvss":[{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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":"low"},{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-77","CWE-78"],"updated_at":"2026-11-02T15:06:23.326773Z"}],"nvd":[{"id":"CVE-2026-3040","description":"A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2026-02-23T22:16:25.96Z","modified":"2026-06-17T10:42:55.48Z","cvss":[{"version":"4.0","score":2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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":"low","assessor":"secondary"},{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"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":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:L/Au:M/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-77","CWE-78"],"updated_at":"2026-11-02T14:12:06.63895Z"}]}}