CVE-2025-22900 Memory corruption in n/a

Critical 9.8 Published 15 Apr 2025 Updated 16 Apr 2025

A stack overflow in the Totolink N600R router allows attackers to execute arbitrary code or cause a denial of service via the macCloneMac 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-2025-22900?

CVE-2025-22900 is a critical memory corruption vulnerability in n/a, published on 15 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.

Weakness: CWE-121

Which versions are affected by CVE-2025-22900?

It affects 1 product.

Products include Totolink N600r Firmware.

How do I fix CVE-2025-22900?

No fix has been published for CVE-2025-22900 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-2025-22900 being exploited?

There is no known exploitation of CVE-2025-22900 in the wild and no public exploit code.

Sources

Also known as GHSA-7jww-p4g2-4fpv.