VulnerabilityAnalyzed

CVE-2017-7921

Hikvision Multiple Products Improper Authentication Vulnerability

KEVCRITICAL 9.8EPSS 100.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 March 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 100.00% probability · 100th percentile
CISA KEV: Listed 5 March 2026 · due 26 March 2026
Weakness: CWE-287
Affected: 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 · +38 more
Source: ics-cert@hq.dhs.gov

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. 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

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.