CVE-2025-5869 RT-Thread lwp_syscall.c sys_recvfrom memory corruption
Memory corruption in RT-Thread's sys_recvfrom function allows attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-5869?
CVE-2025-5869 is a high-severity memory corruption vulnerability in RT-Thread, published on 9 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in RT-Thread 5.1.0. Affected is the function sys_recvfrom of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument from leads to memory corruption.
Weakness: CWE-119
Which versions are affected by CVE-2025-5869?
It affects 1 product.
Products include Rt-Thread Rt-Thread.
How do I fix CVE-2025-5869?
No fix has been published for CVE-2025-5869 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-2025-5869 being exploited?
There is no known exploitation of CVE-2025-5869 in the wild and no public exploit code.
Other vulnerabilities in RT-Thread
Sources
Also known as GHSA-xr69-f8gw-5vr7.