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CVE-2020-5735

8.8
HIGHCVSS v3.1 Base Score
49.54%
MEDIUM RiskEPSS (98th percentile)
KEV

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.

Published: 4/8/2020
Modified: 10/31/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability

Vendor / Product:

Amcrest Cameras and Network Video Recorder (NVR)

Required Action:

Apply updates per vendor instructions.

Due Date: 5/3/2022(OVERDUE)
Added to KEV:

11/3/2021

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2020-5735

Vulnerability Summary

CVSS v3 Score

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2 Score

8

AV:N/AC:L/Au:S/C:P/I:P/A:C

EPSS Score (Exploitation Probability)

49.54%MEDIUM Exploitation Risk
98th percentile

This vulnerability has a 49.54% probability of being exploited in the next 30 days, ranking higher than 98% of all scored CVEs.

CWE Classification

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Similar SeverityHIGH