CVE-2023-40891 Memory corruption in n/a
A stack overflow in the Tenda AC8 router allows attackers to execute arbitrary code or cause a denial of service via the firewall configuration endpoint.
- 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-2023-40891?
CVE-2023-40891 is a critical memory corruption vulnerability in Tenda Ac8 Firmware, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter firewallEn at /goform/SetFirewallCfg.
Weakness: CWE-787
Which versions are affected by CVE-2023-40891?
It affects 1 product.
Products include Tenda Ac8 Firmware.
How do I fix CVE-2023-40891?
No fix has been published for CVE-2023-40891 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-2023-40891 being exploited?
There is no known exploitation of CVE-2023-40891 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ac8 Firmware
Sources
Also known as GHSA-5j44-8wpg-fpc7.