CVE-2025-66176

Summary

CVECVE-2025-66176
StatePUBLISHED
Assignerhikvision
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-13 03:16:01 UTC
Updated2026-07-09 07:16:21 UTC
DescriptionThere is a Buffer 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.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.004850000 probability, percentile 0.384180000 (date 2026-07-13)

Problem Types: CWE-121 | CWE-121 CWE-121 Stack-based Buffer Overflow


VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Hikvision Ds-k1t105a - All All All
Operating System Hikvision Ds-k1t105a Firmware All All All All
Hardware Hikvision Ds-k1t201a - All All All
Operating System Hikvision Ds-k1t201a Firmware All All All All
Hardware Hikvision Ds-k1t320 - All All All
Operating System Hikvision Ds-k1t320 Firmware All All All All
Hardware Hikvision Ds-k1t321 - All All All
Operating System Hikvision Ds-k1t321 Firmware All All All All
Hardware Hikvision Ds-k1t323 - All All All
Operating System Hikvision Ds-k1t323 Firmware All All All All
Hardware Hikvision Ds-k1t331 - All All All
Operating System Hikvision Ds-k1t331 Firmware All All All All
Hardware Hikvision Ds-k1t341a - All All All
Operating System Hikvision Ds-k1t341a Firmware All All All All
Hardware Hikvision Ds-k1t341b - All All All
Operating System Hikvision Ds-k1t341b Firmware All All All All
Hardware Hikvision Ds-k1t341c - All All All
Operating System Hikvision Ds-k1t341c Firmware All All All All
Hardware Hikvision Ds-k1t342 - All All All
Operating System Hikvision Ds-k1t342 Firmware All All All All
Hardware Hikvision Ds-k1t343 - All All All
Operating System Hikvision Ds-k1t343 Firmware All All All All
Hardware Hikvision Ds-k1t344 - All All All
Operating System Hikvision Ds-k1t344 Firmware All All All All
Hardware Hikvision Ds-k1t510 - All All All
Operating System Hikvision Ds-k1t510 Firmware All All All All
Hardware Hikvision Ds-k1t670 - All All All
Operating System Hikvision Ds-k1t670 Firmware All All All All
Hardware Hikvision Ds-k1t671 - All All All
Operating System Hikvision Ds-k1t671 Firmware All All All All
Hardware Hikvision Ds-k1t672 - All All All
Operating System Hikvision Ds-k1t672 Firmware All All All All
Hardware Hikvision Ds-k1t673 - All All All
Operating System Hikvision Ds-k1t673 Firmware All All All All
Hardware Hikvision Ds-k1t680 - All All All
Operating System Hikvision Ds-k1t680 Firmware All All All All
Hardware Hikvision Ds-k1t6qt-f43 - All All All
Operating System Hikvision Ds-k1t6qt-f43 Firmware All All All All
Hardware Hikvision Ds-k1t6qt-f72 - All All All
Operating System Hikvision Ds-k1t6qt-f72 Firmware All All All All
Hardware Hikvision Ds-k1t8003 - All All All
Operating System Hikvision Ds-k1t8003 Firmware All All All All
Hardware Hikvision Ds-k1t8005 - All All All
Operating System Hikvision Ds-k1t8005 Firmware All All All All
Hardware Hikvision Ds-k1t804a - All All All
Operating System Hikvision Ds-k1t804a Firmware All All All All
Hardware Hikvision Ds-k1t804b - All All All
Operating System Hikvision Ds-k1t804b Firmware All All All All
Hardware Hikvision Ds-k1t808 - All All All
Operating System Hikvision Ds-k1t808 Firmware All All All All
Hardware Hikvision Ds-k1t981 - All All All
Operating System Hikvision Ds-k1t981 Firmware All All All All
Hardware Hikvision Ds-k5033 - All All All
Operating System Hikvision Ds-k5033 Firmware All All All All
Hardware Hikvision Ds-k5671 - All All All
Operating System Hikvision Ds-k5671 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Hikvision DS-K1T331 affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T341A/K1T341B affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T671/K5671 affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T672 affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T680 affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T981 affected Versions below V3.7.80 Not specified
CNA Hikvision DS-K1T341C affected Versions below V3.3.180 Not specified
CNA Hikvision DS-K1T670/K1T673 affected Versions below V4.48.0 Not specified
CNA Hikvision DS-K1T8003 affected Versions below V1.4.21 Not specified
CNA Hikvision DS-K1T804A affected Versions below V1.4.22 Not specified
CNA Hikvision DS-K1T8003/8004 affected Versions below V1.4.21 Not specified
CNA Hikvision DS-K1T804A affected Versions below V1.4.22 Not specified
CNA Hikvision DS-K1T804B affected Versions below V1.4.23 Not specified
CNA Hikvision DS-K1T201A/K1T105A affected Versions below V1.3.65 Not specified
CNA Hikvision DS-K1T342/K1T343/K1T344/DS-K1T6QT-F72/F43 affected Versions below V4.48.0 Not specified
CNA Hikvision DS-K1T8005/DS-K1T808 affected Versions below V3.25.40 Not specified
CNA Hikvision DS-K1T320/DS-K1T321 affected Versions below V3.9.40 Not specified
CNA Hikvision DS-K1T323/DS-K1T510 affected Versions below V4.23.41 Not specified
CNA Hikvision DS-K5033 affected Versions below V4.37.40 Not specified

References

ReferenceSourceLinkTags
www.talosintelligence.com/vulnerability_reports/TALOS-2025-2281 af854a3a-2127-422b-91ae-364da2661108 www.talosintelligence.com
www.hikvision.com/en/support/cybersecurity/security-advisory/buffer-overflow-vu... [email protected] www.hikvision.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Matt Wiseman of Cisco Talos (en)

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