{"id":"CVE-2021-1473","aliases":["EUVD-2021-6940","GHSA-gvf7-w4c7-rvrg"],"status":"published","title":"Cisco Small Business RV Series Routers Vulnerabilities","description":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.64407,"percentile":0.99243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119","CWE-78"],"published":"2021-04-08T04:06:59Z","modified":"2026-06-17T03:31:51Z","exploits":[{"source":"metasploit","id":"exploit/linux/http/cisco_rv_series_authbypass_and_rce","title":"Cisco Small Business RV Series Authentication Bypass and Command Injection","type":"exploit","platform":"Linux,Unix","date":"2021-04-07","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/linux/http/cisco_rv_series_authbypass_and_rce"}],"products":[{"vendor":"cisco","product":"cisco small business rv series router firmware"},{"vendor":"cisco","product":"rv340_firmware"},{"vendor":"cisco","product":"rv340w_firmware"},{"vendor":"cisco","product":"rv345_firmware"},{"vendor":"cisco","product":"rv345p_firmware"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-bypass-inject-Rbhgvfdx","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Apr/39","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/162238/Cisco-RV-Authentication-Bypass-Code-Execution.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1473"},{"url":"https://github.com/advisories/GHSA-gvf7-w4c7-rvrg"}],"sources":{"cve":[{"id":"CVE-2021-1473","title":"Cisco Small Business RV Series Routers Vulnerabilities","description":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-04-08T04:06:59.486Z","modified":"2024-11-08T17:49:50.978Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-6940","description":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-04-08T04:06:59Z","modified":"2024-11-08T17:49:50Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:05:06.31936Z"}],"ghsa":[{"id":"GHSA-gvf7-w4c7-rvrg","title":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV...","description":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2022-05-24T17:46:53Z","modified":"2023-01-27T05:03:54Z","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","CWE-119"],"updated_at":"2026-11-02T14:42:20.947965Z"}],"nvd":[{"id":"CVE-2021-1473","description":"Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-04-08T04:15:13.78Z","modified":"2026-06-17T03:31:51.617Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","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":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-119","CWE-78"],"updated_at":"2026-11-02T14:06:51.610648Z"}]}}