{"cve":"CVE-2017-7921","nvd":{"published":"2017-05-06T00:29:00.350","modified":"2026-06-17T01:25:28.927","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287"],"references":["http://www.hikvision.com/us/about_10805.html","http://www.securityfocus.com/bid/98313","https://ghostbin.com/paste/q2vq2","https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01","http://www.hikvision.com/us/about_10805.html"],"products":["hikvision:ds-2cd2032-i_firmware","hikvision:ds-2cd2112-i_firmware","hikvision:ds-2cd2132-i_firmware","hikvision:ds-2cd2212-i5_firmware","hikvision:ds-2cd2232-i5_firmware","hikvision:ds-2cd2312-i_firmware","hikvision:ds-2cd2332-i_firmware","hikvision:ds-2cd2412f-i\\(w\\)_firmware","hikvision:ds-2cd2432f-i\\(w\\)_firmware","hikvision:ds-2cd2512f-i\\(s\\)_firmware","hikvision:ds-2cd2532f-i\\(s\\)_firmware","hikvision:ds-2cd2612f-i\\(s\\)_firmware","hikvision:ds-2cd2632f-i\\(s\\)_firmware","hikvision:ds-2cd2712f-i\\(s\\)_firmware","hikvision:ds-2cd2732f-i\\(s\\)_firmware","hikvision:ds-2cd2t32-i3_firmware","hikvision:ds-2cd2t32-i5_firmware","hikvision:ds-2cd2t32-i8_firmware","hikvision:ds-2cd4012f-\\(a\\)_firmware","hikvision:ds-2cd4012f-\\(p\\)_firmware","hikvision:ds-2cd4012f-\\(w\\)_firmware","hikvision:ds-2cd4012fwd-\\(a\\)_firmware","hikvision:ds-2cd4012fwd-\\(p\\)_firmware","hikvision:ds-2cd4012fwd-\\(w\\)_firmware","hikvision:ds-2cd4024f-\\(a\\)_firmware","hikvision:ds-2cd4024f-\\(p\\)_firmware","hikvision:ds-2cd4024f-\\(w\\)_firmware","hikvision:ds-2cd4032fwd-\\(a\\)_firmware","hikvision:ds-2cd4032fwd-\\(p\\)_firmware","hikvision:ds-2cd4032fwd-\\(w\\)_firmware","hikvision:ds-2cd4112f-i\\(z\\)_firmware","hikvision:ds-2cd4112fwd-i\\(z\\)_firmware","hikvision:ds-2cd4124f-i\\(z\\)_firmware","hikvision:ds-2cd4132fwd-i\\(z\\)_firmware","hikvision:ds-2cd4212f-i\\(h\\)_firmware","hikvision:ds-2cd4212f-i\\(s\\)_firmware","hikvision:ds-2cd4212f-i\\(z\\)_firmware","hikvision:ds-2cd4212fwd-i\\(h\\)_firmware","hikvision:ds-2cd4212fwd-i\\(s\\)_firmware","hikvision:ds-2cd4212fwd-i\\(z\\)_firmware","hikvision:ds-2cd4224f-i\\(h\\)_firmware","hikvision:ds-2cd4224f-i\\(s\\)_firmware","hikvision:ds-2cd4224f-i\\(z\\)_firmware","hikvision:ds-2cd4232fwd-i\\(h\\)_firmware","hikvision:ds-2cd4232fwd-i\\(s\\)_firmware","hikvision:ds-2cd4232fwd-i\\(z\\)_firmware","hikvision:ds-2cd4312f-i\\(h\\)_firmware","hikvision:ds-2cd4312f-i\\(s\\)_firmware","hikvision:ds-2cd4312f-i\\(z\\)_firmware","hikvision:ds-2cd4324f-i\\(h\\)_firmware"],"source":"nvd","synced_at":"2026-10-19T20:42:28.077359912+00:00"},"epss":{"cve":"CVE-2017-7921","score":0.99998,"percentile":0.9999,"date":"2026-10-31"},"kev":{"cve":"CVE-2017-7921","date_added":"2026-03-05","due_date":"2026-03-26","vendor":"Hikvision","product":"Multiple Products","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}