Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-66176

Severity CVSS v4.0:
Pending analysis
Type:
CWE-121 Stack-based Buffer Overflow
Publication date:
13/01/2026
Last modified:
22/01/2026

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:hikvision:ds-k1t331_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t331:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341a_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t341a:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341b_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t341b:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t671:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k5671_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k5671:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t672_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t672:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t680_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)
cpe:2.3:h:hikvision:ds-k1t680:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t981_firmware:*:*:*:*:*:*:*:* 3.7.80 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools