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
Public exploits: None in Exploit-DB
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

EPSS trend

EPSS 100.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.