CVE-2020-5735: Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability

Amcrest cameras and Network Video Recorders (NVR) have a stack-based buffer overflow vulnerability accessible via port 37777. This flaw allows an unauthenticated remote attacker to crash the device and potentially execute arbitrary code. The vulnerability is known to be exploited in the wild, indicating active threat usage. No specific affected versions or patches are provided in the available data.

• CWE-121Stack-based Buffer Overflow (opens in a new tab)

• nvd.nist.gov/vuln/detail/CVE-2020-5735 (opens in a new tab)
• cisa.gov/known-exploited-vulnerabilities-catalog?search=CVE-2020-5735 (opens in a new tab)

• CVE-2021-20038: SonicWall SMA 100 Appliances Stack-Based Buffer Overflow VulnerabilityHighVulnerability01/28/2022
• CVE-2022-20700: Cisco Small Business RV Series Routers Stack-based Buffer Overflow VulnerabilityHighVulnerability03/03/2022
• CVE-2022-20701: Cisco Small Business RV Series Routers Stack-based Buffer Overflow VulnerabilityHighVulnerability03/03/2022
• CVE-2022-20708: Cisco Small Business RV Series Routers Stack-based Buffer Overflow VulnerabilityHighVulnerability03/03/2022
• CVE-2021-27137: DD-WRT Stack-Based Buffer Overflow VulnerabilityHighVulnerability07/21/2026