CVE-2026-14629: A flaw has been found in RT-Thread up to 5.2.2. Affected is the function read/write/sys_ioctl of the file components/lwp/lwp_syscall.c of the component Parameter Handler. Executing
A flaw has been found in RT-Thread up to 5.2.2. Affected is the function read/write/sys_ioctl of the file components/lwp/lwp_syscall.c of the component Parameter Handler. Executing a manipulation can lead to divide by zero. The attack may be launched remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-14629
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-146290.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-14629 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for RT-Thread
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-14607: A weakness has been identified in RT-Thread up to 5.0.2. This affects the function sys_getaddr…nvd · 2026-07-03
- highCVE-2026-14606: A security flaw has been discovered in RT-Thread up to 5.0.2. Affected by this issue is the fu…nvd · 2026-07-03
- highCVE-2026-14605: A vulnerability was identified in RT-Thread up to 5.0.2. Affected by this vulnerability is the…nvd · 2026-07-03
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