Medium 4.3Published Jul 4, 2026

CVE-2026-14629RT-Thread Parameter lwp_syscall.c sys_ioctl divide by zero

Updated under an hour ago (Oct 27, 2026, 2:50 AM ET)

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It affects n/a RT-Thread. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a RT-Thread

Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-369, CWE-404
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jul 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a RT-Thread rt-thread:rt-thread	5.2.0; 5.2.1; 5.2.2	CNA record

References

References

https://vuldb.com/vuln/376145	vdb-entry, technical-description
https://vuldb.com/vuln/376145/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-14629	third-party-advisory
https://vuldb.com/submit/845610	third-party-advisory
https://github.com/RT-Thread/rt-thread/issues/11429	exploit, issue-tracking
https://github.com/RT-Thread/rt-thread/pull/11453	issue-tracking, patch
https://github.com/RT-Thread/rt-thread/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.