Vulnerability · Published Jan 13, 2026 · Assigned by hikvision
CVE-2025-66176
High 8.8
In plain English
A high-severity stack buffer overflow in DS-K1T201A/K1T105A from Hikvision. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 59.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hikvision | DS-K1T331 | Versions below V3.7.80 |
| Hikvision | DS-K1T341A/K1T341B | Versions below V3.7.80 |
| Hikvision | DS-K1T671/K5671 | Versions below V3.7.80 |
| Hikvision | DS-K1T672 | Versions below V3.7.80 |
| Hikvision | DS-K1T680 | Versions below V3.7.80 |
| Hikvision | DS-K1T981 | Versions below V3.7.80 |
| Hikvision | DS-K1T341C | Versions below V3.3.180 |
| Hikvision | DS-K1T670/K1T673 | Versions below V4.48.0 |
| Hikvision | DS-K1T8003 | Versions below V1.4.21 |
| Hikvision | DS-K1T804A | Versions below V1.4.22 |
| Hikvision | DS-K1T8003/8004 | Versions below V1.4.21 |
| Hikvision | DS-K1T804A | Versions below V1.4.22 |
| Hikvision | DS-K1T804B | Versions below V1.4.23 |
| Hikvision | DS-K1T201A/K1T105A | Versions below V1.3.65 |
| Hikvision | DS-K1T342/K1T343/K1T344/DS-K1T6QT-F72/F43 | Versions below V4.48.0 |
| Hikvision | DS-K1T8005/DS-K1T808 | Versions below V3.25.40 |
| Hikvision | DS-K1T320/DS-K1T321 | Versions below V3.9.40 |
| Hikvision | DS-K1T323/DS-K1T510 | Versions below V4.23.41 |
| Hikvision | DS-K5033 | Versions below V4.37.40 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H