CVE-2017-7921

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.

• CWE-287
• CWE-287

• http://www.hikvision.com/us/about_10805.htmlPatch, Vendor Advisory
• http://www.securityfocus.com/bid/98313Broken Link, Third Party Advisory, VDB Entry
• https://ghostbin.com/paste/q2vq2Broken Link
• https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01Third Party Advisory, US Government Resource
• http://www.hikvision.com/us/about_10805.htmlPatch, Vendor Advisory
• http://www.securityfocus.com/bid/98313Broken Link, Third Party Advisory, VDB Entry
• https://ghostbin.com/paste/q2vq2Broken Link
• https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01Third Party Advisory, US Government Resource
• https://www.hikvision.com/cn/support/CybersecurityCenter/SecurityNotices/20170314/Third Party Advisory
• https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification--privilege-escalating-vulnerability-in-cer/Third Party Advisory
• https://www.hikvision.com/us-en/support/document-center/special-notices/privilege-escalating-vulnerability-in-certain-hikvision-ip-cameras/Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7921US Government Resource

Published

May 6, 2017

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2017-7915An Improper Restriction of Excessive Authentication Attempts…
• CVE-2017-7916A Permissions, Privileges, and Access Controls issue was dis…
• CVE-2017-7917A Cross-Site Request Forgery issue was discovered in Moxa On…
• CVE-2017-7918An Improper Access Control issue was discovered in Cambium N…
• CVE-2017-7919An Improper Authentication issue was discovered in Newport X…
• CVE-2017-7920An Improper Authentication issue was discovered in ABB VSN30…
• CVE-2017-7922An Improper Privilege Management issue was discovered in Cam…
• CVE-2017-7923A Password in Configuration File issue was discovered in Hik…
• CVE-2017-7924An Improper Input Validation issue was discovered in Rockwel…
• CVE-2017-7925A Password in Configuration File issue was discovered in Dah…
• CVE-2017-7926A Cross-Site Request Forgery issue was discovered in OSIsoft…
• CVE-2017-7927A Use of Password Hash Instead of Password for Authenticatio…