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Hikvision CVE-2025-66177

HIGH
Stack-based Buffer Overflow (CWE-121)
2026-01-13 hsrc@hikvision.com
8.8
CVSS 3.1 · Vendor: hikvision
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS 8.8 (HIGH). Attack vector: Adjacent Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network.

Exploit ScenarioDerived

A remote attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

There is a Stack 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 8.8 HIGH]

RemediationAI

Monitor vendor advisories for a patch.

Affected ProductsAI

There is a Stack overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-121 (Stack-based Buffer Overflow). There is a Stack 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.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (hikvision) PRIMARY 8.8 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (hikvision) · only source for this CVE.

CVSS VectorVendor: hikvision

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

There is a Stack 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.

Executive ViewAI

Why It Matters

Organizations using There face significant risk from CVE-2025-66177, a stack-based buffer overflow vulnerability rated CVSS 8.8. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact
Very High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.

CVE-2017-7921 CRITICAL POC
9.8 May 06

An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 16

CVE-2014-4880 HIGH POC
7.5 Dec 08

Buffer overflow in Hikvision DVR DS-7204 Firmware 2.2.10 build 131009, and other models and versions, allows remote atta

CVE-2013-4977 CRITICAL POC
10.0 Mar 03

Buffer overflow in the RTSP Packet Handler in Hikvision DS-2CD7153-E IP camera with firmware 4.1.0 b130111 (Jan 2013), a

CVE-2021-36260 CRITICAL POC
9.8 Sep 22

A command injection vulnerability in the web server of some Hikvision product. Rated critical severity (CVSS 9.8), this

CVE-2023-6895 CRITICAL POC
9.8 Dec 17

A vulnerability was found in Hikvision Intercom Broadcasting System 3.0.3_20201113_RELEASE(HIK). Rated critical severity

CVE-2022-28171 CRITICAL POC
9.8 Jun 27

The web module in some Hikvision Hybrid SAN/Cluster Storage products have the following security vulnerability. Rated cr

CVE-2023-6893 HIGH POC
7.5 Dec 17

A vulnerability was found in Hikvision Intercom Broadcasting System 3.0.3_20201113_RELEASE(HIK) and classified as proble

CVE-2025-34067 CRITICAL
10.0 Jul 02

An unauthenticated remote command execution vulnerability exists in the applyCT component of the Hikvision Integrated Se

CVE-2023-6894 MEDIUM POC
6.5 Dec 17

A vulnerability was found in Hikvision Intercom Broadcasting System 3.0.3_20201113_RELEASE(HIK). Rated medium severity (

CVE-2023-28812 CRITICAL
9.8 Nov 23

There is a buffer overflow vulnerability in a web browser plug-in could allow an attacker to exploit the vulnerability b

CVE-2023-28808 CRITICAL
9.8 Apr 11

Some Hikvision Hybrid SAN/Cluster Storage products have an access control vulnerability which can be used to obtain the

CVE-2022-28173 CRITICAL
9.8 Dec 19

The web server of some Hikvision wireless bridge products have an access control vulnerability which can be used to obta

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