---
id: CVE-2025-66177
title: >-
  There is a Buffer overflow Vulnerability in the device Search and Discovery
  feature of Hikvision NVR/DVR/CVR/IPC models
summary: >-
  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
  spec…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-121
published: '2026-01-13'
updated: '2026-07-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66177'
references:
  - url: >-
      https://www.hikvision.com/en/support/cybersecurity/security-advisory/buffer-overflow-vulnerabilities-in-some-hikvision-products/
    label: hsrc@hikvision.com
tags:
  - nvd
  - exploit-available
epss: 0.0035
epssPercentile: 0.25984
ingestedAt: '2026-07-10T01:55:22.917Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/ang3lL/CVE-2025-66177'
  checkedAt: '2026-09-26T09:05:36.167Z'
exploitAvailable: true
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.