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Vulnerabilities

Vulnerability · CVE-2025-66177

There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models.

Published Jan 13, 2026 · catalog updated Jul 9, 2026 · Hikvision iDS-73xxHUHI-M4/S

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

Check if you run it

No confirmed exploitation is on record for CVE-2025-66177. EPSS is 0.34%. Act only if a listed version of Hikvision iDS-73xxHUHI-M4/S is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against 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
0.34%
Remediation
Version ranges on file
Affected products
vendor Hikvision iDS-73xxHUHI-M4/S Build date before 250807

There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models. 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 iDS-73xxHUHI-M4/S Build date before 250807Build date before 250807

How to fix CVE-2025-66177

  • Upgrade

    CVE-2025-66177 lists a fix boundary at 250807. Compare the installed build with that boundary before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

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-2025-66177. EPSS is 0.34%. Act only if a listed version of Hikvision iDS-73xxHUHI-M4/S is installed.

Which versions are affected?

Compare what you have installed with Hikvision iDS-73xxHUHI-M4/S Build date before 250807 Build date before 250807. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.34%. 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 NVR/DVR/CVR/IPC models. 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 NVR/DVR/CVR/IPC models. 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-2025-66177

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66177

    30-day exploitation probability 0.34%

    first.org
  • EUVDVulnerability recordEUVD-2026-2374

    There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision NVR/DVR/CVR/IPC models. 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 devic

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 7, 2026
  • CVE.orgOct 29, 2026
  • EUVDOct 29, 2026