{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/100447?format=json","vulnerability_id":"VCID-chv7-pff6-ufcn","summary":"An issue in Hikvision DS-2CD1321-I V5.7.21 build 230819 allows attackers to cause a Denial of Service (DoS) via sending a crafted POST request to the endpoint /ISAPI/Security/challenge. The vendor has stated that upgrading to V5.7.23_SP2 fixes the issue.","aliases":[{"alias":"CVE-2025-45851"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-45851","reference_id":"","reference_type":"","scores":[{"value":"0.00405","scoring_system":"epss","scoring_elements":"0.61477","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00405","scoring_system":"epss","scoring_elements":"0.61584","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00405","scoring_system":"epss","scoring_elements":"0.61588","published_at":"2026-06-13T12:55:00Z"},{"value":"0.00405","scoring_system":"epss","scoring_elements":"0.6158","published_at":"2026-06-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-45851"},{"reference_url":"https://www.hikvision.com/en/support/download/firmware/","reference_id":"firmware","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-27T19:53:09Z/"}],"url":"https://www.hikvision.com/en/support/download/firmware/"},{"reference_url":"https://crashpark.weebly.com/blog/hikvision-ip-camera-unauthenticated-denial-of-service-dos","reference_id":"hikvision-ip-camera-unauthenticated-denial-of-service-dos","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-27T19:53:09Z/"}],"url":"https://crashpark.weebly.com/blog/hikvision-ip-camera-unauthenticated-denial-of-service-dos"},{"reference_url":"https://assets.hikvision.com/prd/public/all/files/202506/releasenote%5CNetwork_Camera-V5.7.23_SP2_Release_Note-E8.pdf","reference_id":"releasenote%5CNetwork_Camera-V5.7.23_SP2_Release_Note-E8.pdf","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-27T19:53:09Z/"}],"url":"https://assets.hikvision.com/prd/public/all/files/202506/releasenote%5CNetwork_Camera-V5.7.23_SP2_Release_Note-E8.pdf"}],"weaknesses":[],"exploits":[],"severity_range_score":"7.5 - 7.5","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-chv7-pff6-ufcn"}