CVE-2025-66177 Memory corruption in DS-2CD1xx1
A buffer overflow in Hikvision surveillance devices allows local network attackers to cause device malfunction via crafted packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66177?
CVE-2025-66177 is a high-severity memory corruption vulnerability in Hikvision DS-2CD1xx1, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-121
Which versions are affected by CVE-2025-66177?
How do I fix CVE-2025-66177?
No fix has been published for CVE-2025-66177 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-66177 being exploited?
There is no known exploitation of CVE-2025-66177 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-x6hw-xmff-xh6q.