{"id":"CVE-2017-7921","published":"2017-05-06T00:29:00Z","modified":"2026-06-17T01:25:28Z","title":"Hikvision Multiple Products Improper Authentication Vulnerability","vendor":"Hikvision","product":"Multiple Products","tier":"core","eol":null,"description":{"text":"An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information.","provenance":"source","from":"NVD"},"summary":{"text":"Hikvision DS-2CD2xx2F-I, DS-2CD2xx0F-I, DS-2CD2xx2FWD, DS-2CD4x2xFWD, DS-2CD4xx5, DS-2DFx and DS-2CD63xx series devices contain an improper authentication flaw, where the application does not adequately or correctly verify users, across the firmware version ranges listed in the advisory. An attacker with network access to an affected device, requiring no privileges and no user interaction, could escalate privileges on the system and gain access to sensitive information.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:50Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.99998,"percentile":0.9999,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-03-05","dueDate":"2026-03-26","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://www.hikvision.com/us-en/support/document-center/special-notices/privilege-escalating-vulnerability-in-certain-hikvision-ip-cameras/ ; https://nvd.nist.gov/vuln/detail/CVE-2017-7921","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-11-18","exploitedFirstSeen":"2023-11-18","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-18&host_type=src&vulnerability=cve-2017-7921","date":"2023-11-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-29&host_type=src&vulnerability=cve-2017-7921","date":"2023-11-29"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-06&host_type=src&vulnerability=cve-2017-7921","date":"2023-12-06"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-20&host_type=src&vulnerability=cve-2017-7921","date":"2024-01-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2017-7921","date":"2024-01-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-27&host_type=src&vulnerability=cve-2017-7921","date":"2024-01-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-29&host_type=src&vulnerability=cve-2017-7921","date":"2024-01-29"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-30&host_type=src&vulnerability=cve-2017-7921","date":"2024-01-30"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-02&host_type=src&vulnerability=cve-2017-7921","date":"2024-02-02"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-04&host_type=src&vulnerability=cve-2017-7921","date":"2024-02-04"}],"evidenceTotal":536,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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