CVE-2026-51380 Memory corruption in n/a
Attackers can cause permanent denial of service or potentially execute remote code via a buffer overflow in the Tenda AC10 router's configuration upload 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-2026-51380?
CVE-2026-51380 is a critical memory corruption vulnerability in n/a, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow vulnerability in Tenda AC10 v3 (firmware V03.03.16.09) allows attackers to cause a permanent Denial of Service (DoS) or potentially execute remote code via the /cgi-bin/UploadCfg endpoint
Weakness: CWE-120
Which versions are affected by CVE-2026-51380?
How do I fix CVE-2026-51380?
No fix has been published for CVE-2026-51380 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-2026-51380 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51380 exists.
Sources
Also known as GHSA-4fjw-jq8h-7h3f.