CVE DATABASE / CVE-2020-5735
CVE-2020-5735
Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability
CVSS 8.8 · HIGH
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2022-05-03.
Required action: Apply updates per vendor instructions.
Summary
Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly execute arbitrary code.
CVSS 3.1 breakdown
| Base score | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Amcrest 1080-lite 8ch firmwareAmcrest 1080-lite 8chAmcrest amdv10814-h5 firmwareAmcrest amdv10814-h5Amcrest ipm-721 firmwareAmcrest ipm-721Amcrest ip2m-841 firmwareAmcrest ip2m-841Amcrest ip2m-841-v3 firmwareAmcrest ip2m-841-v3Amcrest ip2m-853ew firmwareAmcrest ip2m-853ewAmcrest ip2m-858w firmwareAmcrest ip2m-858wAmcrest ip2m-866w firmwareAmcrest ip2m-866wAmcrest ip2m-866ew firmwareAmcrest ip2m-866ewAmcrest ip4m-1053ew firmwareAmcrest ip4m-1053ew
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References
- http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html
- https://www.tenable.com/security/research/tra-2020-20
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5735
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-31. Always verify against the vendor advisory before acting.