{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T16:33:47Z","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-20181017-wlc-capwap-dos","slug":"cisco-sa-20181017-wlc-capwap-dos","vendor":"Cisco","title":"Cisco Wireless LAN Controller Software Control and Provisioning of Wireless Access Points Protocol Denial of Service Vulnerability","summary":"A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.   The vulnerability is due to improper input validation on fields within CAPWAP Discovery Request packets by the affected device. An attacker could exploit this vulnerability by sending malicious CAPWAP Discovery Request packets to the Cisco WLC Software. A successful exploit could allow the attacker to cause the Cisco WLC Software to disconnect associated access points (APs). While the APs disconnect and reconnect, service will be unavailable for a brief period of time, resulting in a DoS condition. 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-20181017-wlc-capwap-dos","severity":"High","published_at":"2018-10-17T16:00:00Z","updated_at":"2018-10-22T12:53:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos/csaf/cisco-sa-20181017-wlc-capwap-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":0.03381},"cves":[{"id":"CVE-2018-0443","kev":false,"epss":{"score":0.03381,"percentile":0.87464,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"}}],"public_evidence":[{"product":{"name":"Cisco Wireless LAN Controller (WLC)","slug":"cisco-wireless-lan-controller-wlc","vendor":"Cisco"},"cve":{"id":"CVE-2018-0443"},"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":"2026-07-20T05:28:26Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"7.0.116.0; 7.0.220.0; 7.0.230.0; 7.0.235.0; 7.0.235.3; 7.0.240.0; 7.0.250.0; 7.0.251.2; 7.0.252.0; 7.0.98.0; 7.0.98.218; 7.1.91.0; 7.2.103.0; 7.2.110.0; 7.2.111.3; 7.2.115.2; 7.3.101.0; 7.3.103.8; 7.3.112.0; 7.4.100.0; 7.4.100.60; 7.4.110.0; 7.4.121.0; 7.4.130.0; 7.4.140.0; 7.4.150.0; 7.5.102.0; 7.5.102.11; 7.6.1.62; 7.6.100.0; 7.6.110.0; 7.6.120.0; 7.6.130.0; 8.0.100.0; 8.0.110.0; 8.0.115.0; 8.0.120.0; 8.0.121.0; 8.0.132.0; 8.0.133.0; 8.0.135.0; 8.0.140.0; 8.0.150.0; 8.0.152.0; 8.1.102.0; 8.1.111.0; 8.1.122.0; 8.1.130.0; 8.1.131.0; 8.1.132.0; 8.3.102.15","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":0.03381,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-10-17T16:00:00Z","updated_at":"2018-10-22T12:53:00Z","advisory_updated_at":"2018-10-22T12:53:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos"},"row_display_order":1},{"product":{"name":"Cisco 5500 Series Wireless Controllers","slug":"cisco-5500-series-wireless-controllers","vendor":"Cisco"},"cve":{"id":"CVE-2018-0443"},"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":"2026-07-20T05:28:26Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"8.2.110.0; 8.2.111.0; 8.2.141.0; 8.2.164.0; 8.3.102.0; 8.3.111.0; 8.3.122.0; 8.3.131.0; 8.3.132.0; 8.4.100.0","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":0.03381,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-10-17T16:00:00Z","updated_at":"2018-10-22T12:53:00Z","advisory_updated_at":"2018-10-22T12:53:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos"},"row_display_order":2},{"product":{"name":"Cisco 2500 Series Wireless Controllers","slug":"cisco-2500-series-wireless-controllers","vendor":"Cisco"},"cve":{"id":"CVE-2018-0443"},"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":"2026-07-20T05:28:26Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"8.2.100.0; 8.2.121.0; 8.2.130.0; 8.2.151.0; 8.2.160.0; 8.2.161.0; 8.2.166.0; 8.3.112.0; 8.3.121.0; 8.3.130.0; 8.3.133.0; 8.5.103.0","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":0.03381,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-10-17T16:00:00Z","updated_at":"2018-10-22T12:53:00Z","advisory_updated_at":"2018-10-22T12:53:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos"},"row_display_order":3},{"product":{"name":"Cisco 3500 Series Wireless Controllers","slug":"cisco-3500-series-wireless-controllers","vendor":"Cisco"},"cve":{"id":"CVE-2018-0443"},"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":"2026-07-20T05:28:26Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"8.5.105.0","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":0.03381,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-10-17T16:00:00Z","updated_at":"2018-10-22T12:53:00Z","advisory_updated_at":"2018-10-22T12:53:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos"},"row_display_order":4}]}