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CVE-2025-5866

RT-Thread lwp_syscall.c sys_sigprocmask array index

CVSS 8.6 HIGHEPSS 0.7%CWE-119CWE-129
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.6EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
09 Jun 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability classified as critical has been found in RT-Thread 5.1.0. This affects the function sys_sigprocmask of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument how leads to improper validation of array index.
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
Affected products
n/a · RT-Thread

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References
https://github.com/RT-Thread/rt-thread/issues/10300https://vuldb.com/?ctiid.311625https://vuldb.com/?id.311625https://vuldb.com/?submit.584127