CVE-2025-4733 TOTOLINK A3002R/A3002RU HTTP POST Request formIpQoS buffer overflow
Remote attackers can trigger a buffer overflow in TOTOLINK routers via HTTP POST requests, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4733?
CVE-2025-4733 is a high-severity memory corruption vulnerability in Totolink A3002r Firmware, published on 16 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This issue affects some unknown processing of the file /boafrm/formIpQoS of the component HTTP POST Request Handler. The manipulation of the argument mac leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4733?
It affects 2 products.
Products include Totolink A3002r Firmware, Totolink A3002ru Firmware.
How do I fix CVE-2025-4733?
No fix has been published for CVE-2025-4733 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-2025-4733 being exploited?
There is no known exploitation of CVE-2025-4733 in the wild and no public exploit code.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-4wj6-prf6-xvqh.