{"id":"CVE-2021-1279","title":"Cisco SD-WAN Denial of Service Vulnerabilties","summary":"Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device.\r\n\r\nFor more information about these vulnerabilities, see the Details […","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvssSource":"vendor","vendor":"Cisco","product":"Cisco Catalyst SD-WAN Manager","affected":["catalyst_sd_wan_manager","sd_wan_vedge_router","sd_wan_vcontainer","catalyst_sd_wan","sd_wan_vedge_cloud"],"published":"2021-01-20","updated":"2021-02-02","sourceUpdated":"2021-02-02T22:21:54+00:00","source":"CSAF","sourceUrl":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP"},{"url":"https://software.cisco.com"}],"tags":["csaf","vendor-advisory","cisco"],"epss":0.01385,"epssPercentile":0.71002,"ingestedAt":"2026-09-25T07:41:37.795Z","slug":"CVE-2021-1279","body":"## Overview\n\nMultiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device.\r\n\r\nFor more information about these vulnerabilities, see the Details [\"#details\"] section of this advisory.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\n\n## Vendor advisories\n\n- **cisco-sa-sdwan-dosmulti-48jJuEUP** · Cisco · affected: Cisco Catalyst SD-WAN Manager, Cisco SD-WAN vEdge Router, Cisco SD-WAN vContainer, Cisco Catalyst SD-WAN, Cisco SD-WAN vEdge Cloud · updated 2021-02-02 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP)\n\n**Cisco SD-WAN Denial of Service Vulnerabilities**. Released 2021-01-20, updated 2021-02-02.\n\nAffected:\n\n- Cisco Catalyst SD-WAN Manager\n- Cisco SD-WAN vEdge Router\n- Cisco SD-WAN vContainer\n- Cisco Catalyst SD-WAN\n- Cisco SD-WAN vEdge Cloud\n\n## Remediation\n\nCisco has released software updates that address this vulnerability. https://software.cisco.com","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}