CVE-2026-51934 Memory corruption in n/a

Critical 9.8 Published Updated

A remote attacker can execute arbitrary code on Tenda A18 routers via a buffer overflow in the fromSetCmdlineRun function.

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-2026-51934?

CVE-2026-51934 is a critical memory corruption vulnerability in n/a, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer Overflow vulnerability in Shenzhen Jixiang Tengda Technology Co., Ltd. Tenda A18 v.15.13.07.09 allows a remote attacker to execute arbitrary code via the fromSetCmdlineRun function

Weakness: CWE-120

Which versions are affected by CVE-2026-51934?

How do I fix CVE-2026-51934?

No fix has been published for CVE-2026-51934 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-2026-51934 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51934 exists.

Sources

Also known as GHSA-f36h-g6pc-35gw.

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