CVE-2025-66177: Vulnerability in Hikvision DS-96xxxNI-Hx
There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.
AI Analysis
Technical Summary
CVE-2025-66177 is a buffer overflow vulnerability (CWE-121) in the Search and Discovery feature of Hikvision DS-96xxxNI-Hx NVR/DVR/CVR/IPC devices. Exploitation requires network access on the same LAN and involves sending crafted packets to the vulnerable device, potentially causing it to malfunction. The vulnerability affects device firmware versions earlier than 250807. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability without requiring privileges or user interaction.
Potential Impact
Successful exploitation can cause device malfunction, impacting confidentiality, integrity, and availability of the affected Hikvision devices. This could disrupt normal operation of the NVR/DVR/CVR/IPC systems, potentially leading to denial of service or unauthorized control over device functions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or official fixes are provided, users should monitor Hikvision advisories for updates. In the meantime, restrict network access to the devices to trusted LAN segments and consider network-level controls to limit exposure to untrusted hosts.
CVE-2025-66177: Vulnerability in Hikvision DS-96xxxNI-Hx
Description
There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-66177 is a buffer overflow vulnerability (CWE-121) in the Search and Discovery feature of Hikvision DS-96xxxNI-Hx NVR/DVR/CVR/IPC devices. Exploitation requires network access on the same LAN and involves sending crafted packets to the vulnerable device, potentially causing it to malfunction. The vulnerability affects device firmware versions earlier than 250807. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability without requiring privileges or user interaction.
Potential Impact
Successful exploitation can cause device malfunction, impacting confidentiality, integrity, and availability of the affected Hikvision devices. This could disrupt normal operation of the NVR/DVR/CVR/IPC systems, potentially leading to denial of service or unauthorized control over device functions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or official fixes are provided, users should monitor Hikvision advisories for updates. In the meantime, restrict network access to the devices to trusted LAN segments and consider network-level controls to limit exposure to untrusted hosts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hikvision
- Date Reserved
- 2025-11-24T08:59:35.903Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6965b0daa60475309ff8e4da
Added to database: 01/13/2026, 02:41:30 UTC
Last enriched: 07/09/2026, 08:12:31 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 1277
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