CVE-2024-4020 Tenda FH1206 addressNat fromAddressNat buffer overflow
Remote attackers can trigger a buffer overflow in the Tenda FH1206 router's addressNat function, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-4020?
CVE-2024-4020 is a high-severity memory corruption vulnerability in Tenda FH1206, published on 20 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda FH1206 1.2.0.8(8155) and classified as critical. This issue affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument entrys leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261671. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2024-4020?
It affects 1 product.
Products include Tenda Fh1206 Firmware.
How do I fix CVE-2024-4020?
No fix has been published for CVE-2024-4020 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-2024-4020 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4020 exists.
Other vulnerabilities in Tenda FH1206
Sources
Also known as GHSA-rw9j-38rq-r4wq.