High severity8.8NVD Advisory· Published Jan 13, 2026· Updated Jul 9, 2026
CVE-2025-66176
CVE-2025-66176
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.
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Affected products
47cpe:2.3:o:hikvision:ds-k1t341c_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:hikvision:ds-k1t341c_firmware:*:*:*:*:*:*:*:*range: <3.3.180
- (no CPE)range: Versions below V3.3.180
- cpe:2.3:o:hikvision:ds-k1t6qt-f43_firmware:*:*:*:*:*:*:*:*Range: <4.48.0
- cpe:2.3:o:hikvision:ds-k1t6qt-f72_firmware:*:*:*:*:*:*:*:*Range: <4.48.0
cpe:2.3:o:hikvision:ds-k1t8003_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:hikvision:ds-k1t8003_firmware:*:*:*:*:*:*:*:*range: <=1.4.21
- (no CPE)range: Versions below V1.4.21
cpe:2.3:o:hikvision:ds-k1t804a_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:hikvision:ds-k1t804a_firmware:*:*:*:*:*:*:*:*range: <1.4.22
- (no CPE)range: Versions below V1.4.22
cpe:2.3:o:hikvision:ds-k1t804b_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:hikvision:ds-k1t804b_firmware:*:*:*:*:*:*:*:*range: <1.4.23
- (no CPE)range: Versions below V1.4.23
- Hikvision/DS-K1T201A/K1T105Av5Range: Versions below V1.3.65
- Hikvision/DS-K1T320/DS-K1T321v5Range: Versions below V3.9.40
- Hikvision/DS-K1T323/DS-K1T510v5Range: Versions below V4.23.41
- Hikvision/DS-K1T331v5Range: Versions below V3.7.80
- Hikvision/DS-K1T341A/K1T341Bv5Range: Versions below V3.7.80
- Hikvision/DS-K1T342/K1T343/K1T344/DS-K1T6QT-F72/F43v5Range: Versions below V4.48.0
- Hikvision/DS-K1T670/K1T673v5Range: Versions below V4.48.0
- Hikvision/DS-K1T671/K5671v5Range: Versions below V3.7.80
- Hikvision/DS-K1T672v5Range: Versions below V3.7.80
- Hikvision/DS-K1T680v5Range: Versions below V3.7.80
- Hikvision/DS-K1T8003/8004v5Range: Versions below V1.4.21
- Hikvision/DS-K1T8005/DS-K1T808v5Range: Versions below V3.25.40
- Hikvision/DS-K1T981v5Range: Versions below V3.7.80
- Hikvision/DS-K5033v5Range: Versions below V4.37.40
Patches
Vulnerability mechanics
References
2News mentions
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