{"id":"CVE-2021-1609","aliases":["EUVD-2021-7076","GHSA-3mfr-q2cq-gc94"],"status":"published","title":"Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities","description":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.","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":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.09691,"percentile":0.95546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2021-08-04T17:20:31Z","modified":"2026-06-17T03:32:09Z","products":[{"vendor":"cisco","product":"cisco small business rv series router firmware"},{"vendor":"cisco","product":"small_business_rv_series_router_firmware"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv340-cmdinj-rcedos-pY8J3qfy","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1609"},{"url":"https://github.com/advisories/GHSA-3mfr-q2cq-gc94"}],"sources":{"cve":[{"id":"CVE-2021-1609","title":"Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities","description":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-08-04T17:20:31.727Z","modified":"2024-11-07T22:04:32.407Z","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":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-7076","description":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-08-04T17:20:31Z","modified":"2024-11-07T22:04:32Z","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":"2026-11-03T00:05:06.878478Z"}],"ghsa":[{"id":"GHSA-3mfr-q2cq-gc94","title":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340,...","description":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2022-05-24T19:09:55Z","modified":"2023-01-30T05:01:12Z","updated_at":"2026-11-02T14:46:21.550142Z"}],"nvd":[{"id":"CVE-2021-1609","description":"Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-08-04T18:15:08.977Z","modified":"2026-06-17T03:32:09.713Z","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":"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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}