CVE-2026-7674 Shenzhen Libituo Technology LBT-T300-HW1 Web Management start_single_service buffer overflow
Remote attackers can trigger a buffer overflow in the web management interface of Shenzhen Libituo LBT-T300-HW1 devices, 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-2026-7674?
CVE-2026-7674 is a high-severity memory corruption vulnerability in Shenzhen Libituo Technology LBT-T300-HW1, published on 3 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in Shenzhen Libituo Technology LBT-T300-HW1 up to 1.2.8. This issue affects the function start_single_service of the component Web Management Interface. Executing a manipulation of the argument vpn_pptp_server/vpn_l2tp_server can lead to buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-7674?
How do I fix CVE-2026-7674?
No fix has been published for CVE-2026-7674 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-2026-7674 being exploited?
There is no known exploitation of CVE-2026-7674 in the wild and no public exploit code.
Sources
Also known as GHSA-jw73-3w4r-mp3q.