CVE-2022-40876 Memory corruption in n/a
A stack overflow in Tenda AX1803 routers allows remote attackers to execute arbitrary code via crafted HTTP requests.
- 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-2022-40876?
CVE-2022-40876 is a critical memory corruption vulnerability in Tenda Ax1803 Firmware, published on 27 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Tenda ax1803 v1.0.0.1, the http requests handled by the fromAdvSetMacMtuWan functions, wanSpeed, cloneType, mac, can cause a stack overflow and enable remote code execution (RCE).
Weakness: CWE-787
Which versions are affected by CVE-2022-40876?
It affects 1 product.
Products include Tenda Ax1803 Firmware.
How do I fix CVE-2022-40876?
No fix has been published for CVE-2022-40876 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-2022-40876 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40876 exists.
Other vulnerabilities in Tenda Ax1803 Firmware
Sources
Also known as GHSA-qwwj-2xhc-x8v6.