What is CVE-2026-14629?

CVE-2026-14629 is a medium-severity vulnerability in Rt-Thread, classified under Divide By Zero. CVSS score: 4.3/10. Published 2026-07-04.

How severe is CVE-2026-14629?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Rt-Thread

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 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.

EPSS: 0.003 (23.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

N/a Rt-thread — versions 5.2.0, 5.2.1, 5.2.2

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (issue-tracking, patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-14629?: CVE-2026-14629 is a medium-severity vulnerability in Rt-Thread, classified under Divide By Zero. CVSS score: 4.3/10. Published 2026-07-04.
How severe is CVE-2026-14629?: Medium severity. CVSS v3 base score is 4.3 out of 10.