{"id":"CVE-2017-7921","kind":"vulnerability","aliases":["CVE-2017-7921"],"related":[],"title":"An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0…","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.","summary":"Multiple Hikvision camera and video products have an improper authentication flaw that lets an attacker bypass login and reach privileged functions. An attacker who gets in can read sensitive information and escalate privileges on the device.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2026-03-05T00:00:00+00:00","products":[{"name":"Hikvision Multiple Products","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2032-i firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2112-i firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2132-i firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2212-i5 firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2232-i5 firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2312-i firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2332-i firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2412f-i\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2432f-i\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2512f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2532f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2612f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2632f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2712f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2732f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2t32-i3 firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2t32-i5 firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd2t32-i8 firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012f-\\(a\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012f-\\(p\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012f-\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012fwd-\\(a\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012fwd-\\(p\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4012fwd-\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4024f-\\(a\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4024f-\\(p\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4024f-\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4032fwd-\\(a\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4032fwd-\\(p\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4032fwd-\\(w\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4112f-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4112fwd-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4124f-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4132fwd-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212f-i\\(h\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212f-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212f-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212fwd-i\\(h\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212fwd-i\\(s\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"hikvision ds-2cd4212fwd-i\\(z\\) firmware","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","hikvision","infrastructure","iot","self-hosted"],"not_affected_if":["unknown"],"how_to_check":"Identify Hikvision devices on the network and their firmware versions; the sources do not give a specific command or file.","fix":"Apply the vendor mitigations or firmware update per Hikvision's advisory; if no mitigation is available, discontinue use of the affected product, as CISA directs.","status":"open","published_at":"2017-05-06T00:29:00+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:39:11+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:39:11Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor mitigations or firmware update per Hikvision's advisory; if no mitigation is available, discontinue use of the affected product, as CISA directs.","reach":"unknown","summary":"Multiple Hikvision camera and video products have an improper authentication flaw that lets an attacker bypass login and reach privileged functions. An attacker who gets in can read sensitive information and escalate privileges on the device.","category":"infrastructure","who_cares":["hikvision","self-hosted","iot"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker bypasses authentication, reads sensitive data and escalates privileges on the device.","analyst_note":"Find Hikvision's vendor advisory and the list of affected models and fixed firmware versions; the KEV entry gives no versions.","how_to_check":"Identify Hikvision devices on the network and their firmware versions; the sources do not give a specific command or file.","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000446,"input_tokens":2538,"output_tokens":385,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2017':20A,23A '-7921':21A,24A '140305':412C '140721':16A,344C,356C,378C,389C '140805':400C '150410':367C '160106':416C 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's':89A,96A,103A,110A,117A,124A,256A,277A 'self':291B 'self-host':290B 'sensit':321B,452C 'seri':13A,341C,353C,364C,375C,386C,397C,409C 'system':447C 'user':432C,438C 'v5.0.9':410C 'v5.2.0':14A,342C,354C,376C,387C,398C 'v5.3.1':365C 'v5.3.5':414C 'v5.4.0':18A,346C,358C,380C,391C 'v5.4.4':369C 'v5.4.5':402C 'video':297B 'vulner':421C 'w':75A,82A,160A,178A,196A,214A 'z':221A,228A,235A,242A,263A,284A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2017-05-06T00:29:00+00:00","kev":{"dateAdded":"2026-03-05","dueDate":"2026-03-26","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.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2017-7921","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2017-7921","severity":null,"published_at":"2026-03-05T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T13:39:29+00:00","note":null},{"source":"nvd","external_id":"CVE-2017-7921","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7921","severity":null,"published_at":"2017-05-06T00:29:00+00:00","modified_at":"2026-06-17T01:25:28+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}