CVE-2026-51845 Memory corruption in n/a
A stack buffer overflow in the Tenda AC7 router allows attackers to execute arbitrary code or cause a denial of service via the mac parameter.
- 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-2026-51845?
CVE-2026-51845 is a critical memory corruption vulnerability in Tenda Ac7 Firmware, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the mac parameter.
Weakness: CWE-121
Which versions are affected by CVE-2026-51845?
It affects 1 product.
Products include Tenda Ac7 Firmware.
How do I fix CVE-2026-51845?
No fix has been published for CVE-2026-51845 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-2026-51845 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51845 exists.
Other vulnerabilities in Tenda Ac7 Firmware
Sources
Also known as GHSA-m32v-ppvw-wwc8.