November 3, 2021 · Applied Cybernetics Group
CVE-2020-5735 — Amcrest Cameras and Network Video Recorder (NVR)
Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Amcrest
- Product
- Cameras and Network Video Recorder (NVR)
- EPSS
- 98.3th percentile (score 0.356, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- ATT&CK
- T1499 , T1574 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-5735
CISA short description
Amcrest cameras and NVR contain a stack-based buffer overflow vulnerability through port 37777 that allows an unauthenticated, remote attacker to crash the device and possibly execute code.
Required action
Apply updates per vendor instructions.