CVE-2025-5739 TOTOLINK X15 HTTP POST Request formSaveConfig buffer overflow
Remote attackers can trigger a buffer overflow in the HTTP POST handler of TOTOLINK X15 routers, 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-2025-5739?
CVE-2025-5739 is a high-severity memory corruption vulnerability in TOTOLINK X15, published on 6 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability classified as critical has been found in TOTOLINK X15 1.0.0-B20230714.1105. This affects an unknown part of the file /boafrm/formSaveConfig of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-5739?
It affects 1 product.
Products include Totolink X15 Firmware.
How do I fix CVE-2025-5739?
No fix has been published for CVE-2025-5739 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-2025-5739 being exploited?
There is no known exploitation of CVE-2025-5739 in the wild and no public exploit code.
Other vulnerabilities in TOTOLINK X15
- CVE-2025-8242 TOTOLINK X15 HTTP POST Request formFilter buffer overflow
- CVE-2025-8243 TOTOLINK X15 HTTP POST Request formMapDel buffer overflow
- CVE-2025-8244 TOTOLINK X15 HTTP POST Request formMapDelDevice buffer overflow
- CVE-2025-8245 TOTOLINK X15 HTTP POST Request formMultiAPVLAN buffer overflow
- CVE-2025-8246 TOTOLINK X15 HTTP POST Request formRoute buffer overflow
Sources
Also known as GHSA-whxj-w9mm-fm8r.