Vulnerability · Published Jun 9, 2025 · Assigned by VulDB
CVE-2025-5868RT-Thread lwp_syscall.c sys_thread_sigprocmask array index
High 8.0
In plain English
A high-severity memory corruption 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 1.1% (higher than 67% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)1.1%top 33.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability, which was classified as critical, has been found in RT-Thread 5.1.0. This issue affects the function sys_thread_sigprocmask of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument how leads to improper validation of array index.
Affected products (as reported)
Weakness: CWE-129, CWE-119 · 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-311627 | RT-Thread lwp_syscall.c sys_thread_sigprocmask array index vdb-entry, technical-description
- VDB-311627 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #584130 | RT-Thread 5.1.0 Improper Handling of Parameters third-party-advisory
- https://github.com/RT-Thread/rt-thread/issues/10303 issue-tracking