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CVE-2017-7921: Hikvision Multiple Products Improper Authentication Vulnerability

criticalknown exploitedpublic exploitCVE-2017-7921
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Multiple Hikvision products contain an improper authentication vulnerability that could allow a malicious user to escalate privileges on the system and gain access to sensitive information.

CSIRTS triage

vendor: HikvisionPrivilege escalation
What
The vulnerability allows a malicious user to escalate privileges and access sensitive information.
Who is affected
Deployments of multiple Hikvision products are affected by this vulnerability.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update Hikvision products to the latest versions to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-03-05
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-7921

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-7921coverage & exploitation statusNVD · CVE.org

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