CVE-2025-5503 TOTOLINK X15 formMapReboot stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the TOTOLINK X15 router's reboot form, 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-2025-5503?
CVE-2025-5503 is a high-severity memory corruption vulnerability in TOTOLINK X15, published on 3 Jun 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, was found in TOTOLINK X15 1.0.0-B20230714.1105. This affects the function formMapReboot of the file /boafrm/formMapReboot. The manipulation of the argument deviceMacAddr leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-5503?
It affects 1 product.
Products include Totolink X15 Firmware.
How do I fix CVE-2025-5503?
No fix has been published for CVE-2025-5503 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-2025-5503 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5503 exists.
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-q3gg-7j3x-gpfg.