CVE-2020-5735 Amcrest Cameras and NVR Stack-based Buffer Overflow
An authenticated remote attacker can trigger a stack-based buffer overflow in Amcrest cameras and NVRs to crash the device or execute arbitrary code.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5735?
CVE-2020-5735 is a high-severity memory corruption vulnerability in Amcrest, published on 8 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2020-5735?
It affects 18 products.
Products include Amcrest 1080-Lite 8ch Firmware, Amcrest Amdv10814-H5 Firmware, Amcrest Ip2m-841-V3 Firmware, Amcrest Ip2m-841 Firmware, Amcrest Ip2m-853ew Firmware, Amcrest Ip2m-858w Firmware and 12 more.
How do I fix CVE-2020-5735?
No fix has been published for CVE-2020-5735 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-5735 being exploited?
Yes. Attackers have exploited CVE-2020-5735 in the wild since at least 3 Nov 2021.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Amcrest
Sources
Also known as GHSA-q9mh-3fx2-4gj3.