CVE-2021-32941 Annke Network Video Recorder - Stack-based Buffer Overflow
A stack-based buffer overflow in Annke NVRs allows remote attackers to execute arbitrary code with root privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-32941?
CVE-2021-32941 is a critical memory corruption vulnerability in Annke N48PBB (NVR), published on 23 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Annke N48PBB (Network Video Recorder) products of version 3.4.106 build 200422 and prior are vulnerable to a stack-based buffer overflow, which allows an unauthorized remote attacker to execute arbitrary code with the same privileges as the server user (root).
Which versions are affected by CVE-2021-32941?
It affects 1 product.
Products include Annke N48pbb Firmware.
How do I fix CVE-2021-32941?
No fix has been published for CVE-2021-32941 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-32941 being exploited?
There is no known exploitation of CVE-2021-32941 in the wild and no public exploit code.
Sources
Also known as GHSA-3wjh-7493-7f9f.