How severe is CVE-2025-66176?

CVE-2025-66176 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-66176 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66176?

CVE-2025-66176 primarily affects Hikvision Ds-k1t331 Firmware. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-66176?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-66176 have an EU (EUVD) identifier?

Yes. CVE-2025-66176 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2382.

When was CVE-2025-66176 published?

CVE-2025-66176 was published on 2026-01-13 and last updated on 2026-07-09.

CVE-2025-66176

CVE-2025-66176 is a high-severity vulnerability in Hikvision Ds-k1t331 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2382
Weakness: CWE-121
Affected product: Hikvision Ds-k1t331 Firmware
Published: 2026-01-13
Last modified: 2026-07-09

Description

There 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.

Frequently asked questions

What is CVE-2025-66176?: There 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.
How severe is CVE-2025-66176?: CVE-2025-66176 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-66176 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66176?: CVE-2025-66176 primarily affects Hikvision Ds-k1t331 Firmware. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-66176?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-66176 have an EU (EUVD) identifier?: Yes. CVE-2025-66176 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2382.
When was CVE-2025-66176 published?: CVE-2025-66176 was published on 2026-01-13 and last updated on 2026-07-09.

References

Affected products (28)

cpe:2.3:o:hikvision:ds-k1t331_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k5671_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t672_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t680_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t981_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t670_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t673_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t8003_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t804a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t804b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t201a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t105a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t342_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t343_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t344_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t6qt-f72_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t6qt-f43_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t8005_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t808_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t321_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t323_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k5033_firmware:*:*:*:*:*:*:*:*

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