{"cve_id":"CVE-2017-7921","published":"2017-05-06T00:29:00.350000+00:00","last_modified":"2026-06-17T01:25:28.927000+00:00","vuln_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_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-287"],"in_kev":true,"kev_date_added":"2026-03-05","kev_ransomware":false,"epss_score":0.99998,"epss_percentile":0.9999,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["AUTH_BYPASS","CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T08:34:22.433442+00:00","first_seen":"2017-05-06T00:29:00.350000+00:00","kev_first_seen":"2026-03-05T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["hikvision"],"products":["ds-2cd2032-i","ds-2cd2032-i_firmware","ds-2cd2112-i","ds-2cd2112-i_firmware","ds-2cd2132-i","ds-2cd2132-i_firmware","ds-2cd2212-i5","ds-2cd2212-i5_firmware","ds-2cd2232-i5","ds-2cd2232-i5_firmware","ds-2cd2312-i","ds-2cd2312-i_firmware","ds-2cd2332-i","ds-2cd2332-i_firmware","ds-2cd2412f-i\\(w\\)","ds-2cd2412f-i\\(w\\)_firmware","ds-2cd2432f-i\\(w\\)","ds-2cd2432f-i\\(w\\)_firmware","ds-2cd2512f-i\\(s\\)","ds-2cd2512f-i\\(s\\)_firmware","ds-2cd2532f-i\\(s\\)","ds-2cd2532f-i\\(s\\)_firmware","ds-2cd2612f-i\\(s\\)","ds-2cd2612f-i\\(s\\)_firmware","ds-2cd2632f-i\\(s\\)","ds-2cd2632f-i\\(s\\)_firmware","ds-2cd2712f-i\\(s\\)","ds-2cd2712f-i\\(s\\)_firmware","ds-2cd2732f-i\\(s\\)","ds-2cd2732f-i\\(s\\)_firmware","ds-2cd2t32-i3","ds-2cd2t32-i3_firmware","ds-2cd2t32-i5","ds-2cd2t32-i5_firmware","ds-2cd2t32-i8","ds-2cd2t32-i8_firmware","ds-2cd4012f-\\(a\\)","ds-2cd4012f-\\(a\\)_firmware","ds-2cd4012f-\\(p\\)","ds-2cd4012f-\\(p\\)_firmware","ds-2cd4012f-\\(w\\)","ds-2cd4012f-\\(w\\)_firmware","ds-2cd4012fwd-\\(a\\)","ds-2cd4012fwd-\\(a\\)_firmware","ds-2cd4012fwd-\\(p\\)","ds-2cd4012fwd-\\(p\\)_firmware","ds-2cd4012fwd-\\(w\\)","ds-2cd4012fwd-\\(w\\)_firmware","ds-2cd4024f-\\(a\\)","ds-2cd4024f-\\(a\\)_firmware","ds-2cd4024f-\\(p\\)","ds-2cd4024f-\\(p\\)_firmware","ds-2cd4024f-\\(w\\)","ds-2cd4024f-\\(w\\)_firmware","ds-2cd4032fwd-\\(a\\)","ds-2cd4032fwd-\\(a\\)_firmware","ds-2cd4032fwd-\\(p\\)","ds-2cd4032fwd-\\(p\\)_firmware","ds-2cd4032fwd-\\(w\\)","ds-2cd4032fwd-\\(w\\)_firmware","ds-2cd4112f-i\\(z\\)","ds-2cd4112f-i\\(z\\)_firmware","ds-2cd4112fwd-i\\(z\\)","ds-2cd4112fwd-i\\(z\\)_firmware","ds-2cd4124f-i\\(z\\)","ds-2cd4124f-i\\(z\\)_firmware","ds-2cd4132fwd-i\\(z\\)","ds-2cd4132fwd-i\\(z\\)_firmware","ds-2cd4212f-i\\(h\\)","ds-2cd4212f-i\\(h\\)_firmware","ds-2cd4212f-i\\(s\\)","ds-2cd4212f-i\\(s\\)_firmware","ds-2cd4212f-i\\(z\\)","ds-2cd4212f-i\\(z\\)_firmware","ds-2cd4212fwd-i\\(h\\)","ds-2cd4212fwd-i\\(h\\)_firmware","ds-2cd4212fwd-i\\(s\\)","ds-2cd4212fwd-i\\(s\\)_firmware","ds-2cd4212fwd-i\\(z\\)","ds-2cd4212fwd-i\\(z\\)_firmware","ds-2cd4224f-i\\(h\\)","ds-2cd4224f-i\\(h\\)_firmware","ds-2cd4224f-i\\(s\\)","ds-2cd4224f-i\\(s\\)_firmware","ds-2cd4224f-i\\(z\\)","ds-2cd4224f-i\\(z\\)_firmware","ds-2cd4232fwd-i\\(h\\)","ds-2cd4232fwd-i\\(h\\)_firmware","ds-2cd4232fwd-i\\(s\\)","ds-2cd4232fwd-i\\(s\\)_firmware","ds-2cd4232fwd-i\\(z\\)","ds-2cd4232fwd-i\\(z\\)_firmware","ds-2cd4312f-i\\(h\\)","ds-2cd4312f-i\\(h\\)_firmware","ds-2cd4312f-i\\(s\\)","ds-2cd4312f-i\\(s\\)_firmware","ds-2cd4312f-i\\(z\\)","ds-2cd4312f-i\\(z\\)_firmware","ds-2cd4324f-i\\(h\\)","ds-2cd4324f-i\\(h\\)_firmware","ds-2cd4324f-i\\(s\\)","ds-2cd4324f-i\\(s\\)_firmware","ds-2cd4324f-i\\(z\\)","ds-2cd4324f-i\\(z\\)_firmware","ds-2cd4332fwd-i\\(h\\)","ds-2cd4332fwd-i\\(h\\)_firmware","ds-2cd4332fwd-i\\(s\\)","ds-2cd4332fwd-i\\(s\\)_firmware","ds-2cd4332fwd-i\\(z\\)","ds-2cd4332fwd-i\\(z\\)_firmware","ds-2cd63xx_series","ds-2cd63xx_series_firmware","ds-2cd6412fwd","ds-2cd6412fwd_firmware","ds-2dfx_series","ds-2dfx_series_firmware"],"affected":[{"vendor":"hikvision","product":"ds-2cd2032-i_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2112-i_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2132-i_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2212-i5_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2232-i5_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2312-i_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2332-i_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2412f-i\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2432f-i\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2512f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2532f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2612f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2632f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2712f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2732f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2t32-i3_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2t32-i5_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd2t32-i8_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012f-\\(a\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012f-\\(p\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012f-\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012fwd-\\(a\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012fwd-\\(p\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4012fwd-\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4024f-\\(a\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4024f-\\(p\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4024f-\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4032fwd-\\(a\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4032fwd-\\(p\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4032fwd-\\(w\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4112f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4112fwd-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4124f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4132fwd-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212f-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212fwd-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212fwd-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4212fwd-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4224f-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4224f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4224f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4232fwd-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4232fwd-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4232fwd-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4312f-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4312f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4312f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4324f-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4324f-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4324f-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4332fwd-i\\(h\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4332fwd-i\\(s\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd4332fwd-i\\(z\\)_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd63xx_series_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2cd6412fwd_firmware","ranges":["all versions"]},{"vendor":"hikvision","product":"ds-2dfx_series_firmware","ranges":["all versions"]}]}