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Vulnerabilities

Vulnerability · CVE-2025-66176

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

Published Jan 13, 2026 · catalog updated Jul 9, 2026 · Hikvision DS-K1T670/K1T673

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-66176. EPSS is 0.47%. Act only if a listed version of Hikvision DS-K1T670/K1T673 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.47%
Remediation
Advisory link
Affected products
vendor Hikvision DS-K1T670/K1T673 Versions below V4.48.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Hikvision DS-K1T670/K1T673 Versions below V4.48.0Versions below V4.48.0

How to fix CVE-2025-66176

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-66176. EPSS is 0.47%. Act only if a listed version of Hikvision DS-K1T670/K1T673 is installed.

Which versions are affected?

Compare what you have installed with Hikvision DS-K1T670/K1T673 Versions below V4.48.0 Versions below V4.48.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.47%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 13, 2026 · EUVD

    Detected

    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.

  2. Jul 9, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-66176

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66176

    30-day exploitation probability 0.47%

    first.org
  • EUVDVulnerability recordEUVD-2026-2382

    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 devi

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgOct 29, 2026
  • EUVDOct 29, 2026