CVE-2020-5735: Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability
CVE-2020-5735 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03
Amcrest cameras and NVR devices are vulnerable to a stack-based buffer overflow on port 37777. A remote authenticated attacker can exploit this to cause a denial-of-service (crash) or potentially execute arbitrary code on the device.
Quick answers
Is CVE-2020-5735 exploited in the wild?
Yes. CVE-2020-5735 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-5735?
Critical severity, with a CVSS score of 8.8, published 3 November 2021.
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-5735 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2020-5735?
Check whether you run Amcrest Cameras or Amcrest Network Video Recorder (NVR). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.