CVE-2025-61128 Memory corruption in n/a

Critical 9.1 Published Updated

Attackers can execute arbitrary code on WAVLINK routers via a stack-based buffer overflow in the login.cgi 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-2025-61128?

CVE-2025-61128 is a critical memory corruption vulnerability in n/a, published on 28 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack-based buffer overflow vulnerability in WAVLINK QUANTUM D3G/WL-WN530HG3 firmware M30HG3_V240730, and possibly other wavlink models allows attackers to execute arbitrary code via crafted referrer value POST to login.cgi.

Weakness: CWE-121

Which versions are affected by CVE-2025-61128?

How do I fix CVE-2025-61128?

No fix has been published for CVE-2025-61128 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-2025-61128 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-61128 exists.

Sources

Also known as GHSA-6gqc-2cg6-q36c.

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