CVE-2025-66176 json
There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision Access Control Products.
published 2026-01-13 9 mo ago modified 2026-07-09 4 mo ago also EUVD-2026-2382
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- hikvision ds-k1t331_firmware 3.7.80
- hikvision ds-k1t341a_firmware 3.7.80
- hikvision ds-k1t341b_firmware 3.7.80
- hikvision ds-k1t671_firmware 3.7.80
- hikvision ds-k5671_firmware 3.7.80
- hikvision ds-k1t672_firmware 3.7.80
- hikvision ds-k1t680_firmware 3.7.80
- hikvision ds-k1t981_firmware 3.7.80
- hikvision ds-k1t341c_firmware 3.3.180
- hikvision ds-k1t670_firmware 4.48.0
- hikvision ds-k1t673_firmware 4.48.0
- hikvision ds-k1t804a_firmware 1.4.22
- hikvision ds-k1t804b_firmware 1.4.23
- hikvision ds-k1t201a_firmware 1.3.65
- hikvision ds-k1t105a_firmware 1.3.65
- hikvision ds-k1t342_firmware 4.48.0
- hikvision ds-k1t343_firmware 4.48.0
- hikvision ds-k1t344_firmware 4.48.0
- hikvision ds-k1t6qt-f72_firmware 4.48.0
- hikvision ds-k1t6qt-f43_firmware 4.48.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 9 mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Hikvision DS-K1T331
- Hikvision DS-K1T341A/K1T341B
- Hikvision DS-K1T671/K5671
- Hikvision DS-K1T672
- Hikvision DS-K1T680
- Hikvision DS-K1T981
- Hikvision DS-K1T341C
- Hikvision DS-K1T670/K1T673
- Hikvision DS-K1T8003
- Hikvision DS-K1T804A
- Hikvision DS-K1T8003/8004
- Hikvision DS-K1T804B
- Hikvision DS-K1T201A/K1T105A
- Hikvision DS-K1T342/K1T343/K1T344/DS-K1T6QT-F72/F43
- Hikvision DS-K1T8005/DS-K1T808
- Hikvision DS-K1T320/DS-K1T321
- Hikvision DS-K1T323/DS-K1T510
- Hikvision DS-K5033
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
Sources
- CVE List CVE-2025-66176
- NVD CVE-2025-66176
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.