Vulnerability · Published Jun 9, 2025 · Assigned by VulDB
CVE-2025-5867RT-Thread lwp_syscall.c csys_sendto null pointer dereference
High 8.0
In plain English
A high-severity null pointer dereference in RT-Thread. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)1.2%top 31.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.
Affected products (as reported)
Weakness: CWE-476, CWE-404 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R
References
- VDB-311626 | RT-Thread lwp_syscall.c csys_sendto null pointer dereference vdb-entry, technical-description
- VDB-311626 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #584129 | RT-Thread 5.1.0 Improper Handling of Parameters third-party-advisory
- https://github.com/RT-Thread/rt-thread/issues/10299 issue-tracking