Note: This vulnerability (CVE-2017-7921) was originally published in 2017, however CISA added it to the Known Exploited Vulnerabilities (KEV) catalog on 2026-03-05 due to detected active exploitation.
EPSS Alert: The probability of this vulnerability being exploited in the next 30 days is 94.1% (percentile: 100%).
Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2017-7921 |
| Alert Source | CISA KEV - Active Exploitation |
| CVE Publication Year | 2017 |
| Date Published | 2026-03-05 |
| Vendor | Hikvision |
| Product | Multiple Products |
| CVSS Score | 10.0 (critical) |
| EPSS Score | 94.1% (percentile: 100%) |
| CISA KEV | Yes - confirmed active exploitation |
| Ransomware | Not confirmed |
| Remediation Deadline | 2026-03-26 |
Vulnerability Description
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.
Required Actions
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
High Exploitation Risk
According to EPSS (Exploit Prediction Scoring System), the probability of this vulnerability being exploited within 30 days is very high (94.1%). We recommend prioritizing this update.
Who Is Affected?
This vulnerability affects Multiple Products by Hikvision. Check if your organization uses this software and requires updates.
Sources
Need help securing your systems? nFlo team offers vulnerability management and 24/7 SOC services. Contact us.
How can nFlo help?
If your organization uses products affected by this vulnerability, contact us. We can help with:
- Verifying whether your systems are at risk
- Implementing patches and risk mitigation
- Monitoring for exploitation attempts in your environment
Useful resources:
