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critical·Product Based Web Vulnerabilities·Updated Dec 16, 2023

CVE-2017-7921 Scanner

CVE-2017-7921 scanner - Authentication Bypass vulnerability in Various Hikvision Devices

Est. Time~15 seconds
Scan TypeSingle Scan
Targetsurl
CostFree
3.3k
Times Used
continuous scan runs
3.4k
Continuously Checked
assets under CS
15
Vulnerabilities Found
confirmed findings
References
🔴
CISA Known Exploited Vulnerability
This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.
CVECVE-2017-7921
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.

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.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Hikvision Camerasby n/a
Hikvision Cameras
Updated Aug 22, 2026View on NVD →
Detail

Hikvision is a global leader in innovative security systems and solutions. Their extensive range of devices includes video surveillance cameras, access control devices, and intrusion detection systems. These devices are used in a diverse range of settings, including residential, commercial, and industrial environments. Hikvision devices are designed to provide reliable and high-quality security solutions that keep people and property safe. 

One of the security vulnerabilities that has been detected in Hikvision devices is CVE-2017-7921. This vulnerability was found in several Hikvision products, including the DS-2CD2xx2F-I Series, DS-2CD2xx0F-I Series, DS-2CD2xx2FWD Series, DS-2CD4x2xFWD Series, DS-2CD4xx5 Series, DS-2DFx Series, and DS-2CD63xx Series. The vulnerability relates to an improper authentication issue, which allows an attacker to escalate their privileges on the system and gain access to sensitive information. 

If CVE-2017-7921 is successfully exploited, it can lead to a number of serious consequences. An attacker may be able to gain unauthorized access to sensitive information, including personal data, financial information, and intellectual property. The attacker may also be able to tamper with or destroy data, disrupt normal system operations, or use the device to launch attacks against other systems. In some cases, a successful attack may go unnoticed, allowing the attacker to continue their activities undetected. 

Thanks to the pro features of the s4e.io platform, it is easy for readers to learn about potential vulnerabilities in their digital assets. By staying informed and taking appropriate precautions, users can protect their systems and data from unauthorized access and potential attacks.

 

REFERENCES

Solution Advice

To protect against this vulnerability, users of Hikvision devices should take the following precautions:

  • Update device firmware to the latest version
  • Change default passwords to strong, unique passwords
  • Restrict network access to only trusted devices and users
  • Implement network segmentation to minimize the impact of a successful attack
  • Use intrusion detection systems and monitors to detect and respond to attacks in real time

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CVE-2017-7921 scanner - Authentication Bypass vulnerability in Various Hikvision Devices S4E