{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T11:04:19Z","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","advisory":{"id":"cisco-sa-20190605-cucm-imp-dos","slug":"cisco-sa-20190605-cucm-imp-dos","vendor":"Cisco","title":"Cisco Unified Communications Manager IM&P Service, Cisco TelePresence VCS, and Cisco Expressway Series Denial of Service Vulnerability","summary":"A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","severity":"High","published_at":"2019-06-05T16:00:00Z","updated_at":"2019-06-24T13:49:49Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos/csaf/cisco-sa-20190605-cucm-imp-dos.json","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure."},"freshness":{"last_source_refreshed_at":"2026-07-21T05:16:34Z","latest_source_refresh_at":"2026-07-21T05:16:34Z","oldest_source_refresh_at":"2026-07-21T03:00:03Z","all_sources_fresh":true,"sources":[{"source":"cisco_advisories","label":"Cisco advisories","last_success_at":"2026-07-21T03:00:03Z","stale":false},{"source":"cisco_csaf","label":"Cisco CSAF","last_success_at":"2026-07-21T05:14:24Z","stale":false},{"source":"nvd_cves","label":"NVD CVEs","last_success_at":"2026-07-21T05:16:30Z","stale":false},{"source":"cisa_kev","label":"CISA KEV","last_success_at":"2026-07-21T05:16:31Z","stale":false},{"source":"first_epss","label":"EPSS","last_success_at":"2026-07-21T05:16:34Z","stale":false}]},"summary":{"cve_count":1,"visible_product_count":4,"public_evidence_count":4,"kev_count":0,"highest_epss":0.04639},"cves":[{"id":"CVE-2019-1845","kev":false,"epss":{"score":0.04639,"percentile":0.90711,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"}}],"public_evidence":[{"product":{"name":"Cisco Unified Communications Manager IM and Presence Service","slug":"cisco-unified-communications-manager-im-and-presence-service","vendor":"Cisco"},"cve":{"id":"CVE-2019-1845"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T00:00:48Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Unified Communications Manager IM and Presence Service","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.04639,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-06-05T16:00:00Z","updated_at":"2019-06-24T13:49:49Z","advisory_updated_at":"2019-06-24T13:49:49Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos"},"row_display_order":1},{"product":{"name":"Cisco Expressway","slug":"cisco-expressway","vendor":"Cisco"},"cve":{"id":"CVE-2019-1845"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T00:00:48Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Expressway","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.04639,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-06-05T16:00:00Z","updated_at":"2019-06-24T13:49:49Z","advisory_updated_at":"2019-06-24T13:49:49Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos"},"row_display_order":2},{"product":{"name":"Cisco TelePresence Video Communication Server (VCS)","slug":"cisco-telepresence-video-communication-server-vcs","vendor":"Cisco"},"cve":{"id":"CVE-2019-1845"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T00:00:48Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco TelePresence Video Communication Server (VCS)","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.04639,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-06-05T16:00:00Z","updated_at":"2019-06-24T13:49:49Z","advisory_updated_at":"2019-06-24T13:49:49Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos"},"row_display_order":3},{"product":{"name":"Cisco TelePresence Video Communication Server (VCS) Expressway","slug":"cisco-telepresence-video-communication-server-vcs-expressway","vendor":"Cisco"},"cve":{"id":"CVE-2019-1845"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco 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exposure.","kev":false,"epss":{"score":0.04639,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-06-05T16:00:00Z","updated_at":"2019-06-24T13:49:49Z","advisory_updated_at":"2019-06-24T13:49:49Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos"},"row_display_order":4}]}