{"id":"CVE-2021-1301","aliases":["EUVD-2021-6768","GHSA-75jh-gcr9-74rj"],"status":"published","title":"Cisco SD-WAN Buffer Overflow Vulnerabilities","description":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/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":0.0213,"percentile":0.82113,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-120","CWE-20"],"published":"2021-01-20T19:55:40Z","modified":"2026-06-17T03:31:26Z","products":[{"vendor":"cisco","product":"catalyst_sd-wan_manager"},{"vendor":"cisco","product":"cisco sd-wan solution"},{"vendor":"cisco","product":"ios_xe_sd-wan"},{"vendor":"cisco","product":"sd-wan_firmware"},{"vendor":"cisco","product":"sd-wan_vbond_orchestrator"},{"vendor":"cisco","product":"sd-wan_vsmart_controller_firmware"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-bufovulns-B5NrSHbj","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1301"},{"url":"https://github.com/advisories/GHSA-75jh-gcr9-74rj"}],"sources":{"cve":[{"id":"CVE-2021-1301","title":"Cisco SD-WAN Buffer Overflow Vulnerabilities","description":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-01-20T19:55:40.54Z","modified":"2024-11-12T20:27:38.208Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-6768","description":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-01-20T19:55:40Z","modified":"2024-11-12T20:27:38Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:05:03.478844Z"}],"ghsa":[{"id":"GHSA-75jh-gcr9-74rj","title":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker...","description":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory. ","status":"published","published":"2022-05-24T17:39:41Z","modified":"2023-01-27T05:03:12Z","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-20","CWE-119","CWE-120"],"updated_at":"2026-11-02T14:42:11.706998Z"}],"nvd":[{"id":"CVE-2021-1301","description":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2021-01-20T20:15:16.877Z","modified":"2026-06-17T03:31:26.76Z","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":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"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-20"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}