CVE-2025-4826 TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formWirelessTbl buffer overflow
Remote attackers can trigger a buffer overflow in TOTOLINK routers via HTTP POST requests, potentially leading to arbitrary code execution.
- 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-2025-4826?
CVE-2025-4826 is a high-severity memory corruption vulnerability in Totolink A3002r Firmware, published on 17 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 A702R, A3002R and A3002RU 3.0.0-B20230809.1615. This issue affects some unknown processing of the file /boafrm/formWirelessTbl of the component HTTP POST Request Handler. The manipulation of the argument submit-url 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-2025-4826?
It affects 3 products.
Products include Totolink A3002r Firmware, Totolink A3002ru Firmware, Totolink A702r Firmware.
How do I fix CVE-2025-4826?
No fix has been published for CVE-2025-4826 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-2025-4826 being exploited?
There is no known exploitation of CVE-2025-4826 in the wild and no public exploit code.
Other vulnerabilities in Totolink A3002r Firmware
Sources
Also known as GHSA-2qg7-wwhv-wp5v.