Hikvision DS-K5033 Discovery Feature stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Hikvision DS-K1T331, DS-K1T341A, K1T341B, DS-K1T671, K5671, DS-K1T672, DS-K1T680, DS-K1T981, DS-K1T341C, DS-K1T670, K1T673, DS-K1T8003, DS-K1T804A, 8004, DS-K1T804B, DS-K1T201A, K1T105A, DS-K1T342, K1T343, K1T344, DS-K1T6QT-F72, F43, DS-K1T8005, DS-K1T808, DS-K1T320, DS-K1T321, DS-K1T323, DS-K1T510 and DS-K5033. It has been declared as critical. This issue affects some unknown processing of the component Discovery Feature. The manipulation results in stack-based overflow. This vulnerability is reported as CVE-2025-66176. The attacker must have access to the local network to execute the attack. No exploit exists. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in Hikvision DS-K1T331, DS-K1T341A, K1T341B, DS-K1T671, K5671, DS-K1T672, DS-K1T680, DS-K1T981, DS-K1T341C, DS-K1T670, K1T673, DS-K1T8003, DS-K1T804A, 8004, DS-K1T804B, DS-K1T201A, K1T105A, DS-K1T342, K1T343, K1T344, DS-K1T6QT-F72, F43, DS-K1T8005, DS-K1T808, DS-K1T320, DS-K1T321, DS-K1T323, DS-K1T510 and DS-K5033. Affected is some unknown processing of the component Discovery Feature. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

There is a Stack overflow Vulnerability in the device Search and Discovery feature of Hikvision Access Control Products. 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.

The weakness was disclosed with Cisco Talos Team. The advisory is available at hikvision.com. This vulnerability is traded as CVE-2025-66176 since 11/24/2025. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (hikvision): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/24/2025 CVE reserved
01/13/2026 +50 days Advisory disclosed
01/13/2026 +0 days VulDB entry created
01/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hikvision.com
Organization: Cisco Talos Team
Status: Confirmed

CVE: CVE-2025-66176 (🔒)
GCVE (CVE): GCVE-0-2025-66176
GCVE (VulDB): GCVE-100-340542

Entryinfo

Created: 01/13/2026 08:40
Changes: 01/13/2026 08:40 (63)
Complete: 🔍
Cache ID: 216::103

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