{"id":"CVE-2022-20783","title":"Cisco Telepresence CE and RoomOS Software Denial of Service Vulnerability","summary":"A vulnerability in the packet processing functionality of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","vendor":"Cisco","product":"Cisco TelePresence Endpoint Software (TC/CE)","affected":["telepresence_endpoint_software_tc_ce","roomos_software"],"published":"2022-04-20","updated":"2022-04-20","sourceUpdated":"2022-04-20T16:00:00+00:00","source":"CSAF","sourceUrl":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ce-roomos-dos-c65x2Qf2","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ce-roomos-dos-c65x2Qf2"},{"url":"https://software.cisco.com"}],"tags":["csaf","vendor-advisory","cisco"],"epss":0.01428,"epssPercentile":0.71816,"ingestedAt":"2026-09-08T15:58:18.538Z","slug":"CVE-2022-20783","body":"## Overview\n\nA vulnerability in the packet processing functionality of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted H.323 traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to either reboot normally or reboot into maintenance mode, which could result in a DoS condition on the device.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\n\n## Vendor advisories\n\n- **cisco-sa-ce-roomos-dos-c65x2Qf2** · Cisco · affected: Cisco TelePresence Endpoint Software (TC/CE), Cisco RoomOS Software · updated 2022-04-20 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ce-roomos-dos-c65x2Qf2)\n\n**Cisco TelePresence Collaboration Endpoint and RoomOS Software H.323 Denial of Service Vulnerability**. Released 2022-04-20.\n\nAffected:\n\n- Cisco TelePresence Endpoint Software (TC/CE)\n- Cisco RoomOS Software\n\n## Remediation\n\nCisco has released software updates that address this vulnerability. https://software.cisco.com","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}