CVE-2025-5865
A vulnerability was found in RT-Thread 5.1.0.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability was found in RT-Thread 5.1.0. It has been rated as critical. Affected by this issue is the function sys_select of the file rt-thread/components/lwp/lwp_syscall.c of the component Parameter Handler. The manipulation of the argument timeout leads to memory corruption. The vendor explains, that "[t]he timeout parameter should be checked to check if it can be accessed correctly in kernel mode and used temporarily in kernel memory."
- CVSS 4.0
- 8.6 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.88% probability · 59th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- rt-thread/rt-thread
- Source
- cna@vuldb.com
EPSS 0.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/RT-Thread/rt-thread/issues/10298Exploit, Issue Tracking, Third Party Advisory
- https://github.com/RT-Thread/rt-thread/issues/10298#issuecomment-2894952150Exploit, Issue Tracking, Third Party Advisory
- https://vuldb.com/?ctiid.311624Permissions Required, VDB Entry
- https://vuldb.com/?id.311624Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.584124Third Party Advisory, VDB Entry
- https://github.com/RT-Thread/rt-thread/issues/10298Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.