CVE-2025-55586 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a Denial of Service on TOTOLINK A3002R routers by sending crafted input to the url 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-2025-55586?

CVE-2025-55586 is a high-severity denial of service vulnerability in Totolink A3002r Firmware, published on 18 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Weakness: CWE-400

Which versions are affected by CVE-2025-55586?

It affects 1 product.

Products include Totolink A3002r Firmware.

How do I fix CVE-2025-55586?

No fix has been published for CVE-2025-55586 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-55586 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55586 exists.

All Totolink A3002r Firmware vulnerabilities

Sources

Also known as GHSA-p2f2-947h-8q6c.

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