CVE-2026-14629

MEDIUM 4.3

RT-Thread Parameter lwp_syscall.c sys_ioctl divide by zero

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-369 CWE-404
Vendor	n/a
Product	rt-thread
Published	Jul 4, 2026

Stay Ahead of the Next One

Get instant alerts for n/a rt-thread

Be the first to know when new medium vulnerabilities affecting n/a rt-thread are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / RT-Thread

5.2.0 5.2.1 5.2.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/376145 vuldb.com: https://vuldb.com/vuln/376145/cti vuldb.com: https://vuldb.com/cve/CVE-2026-14629 vuldb.com: https://vuldb.com/submit/845610 github.com: https://github.com/RT-Thread/rt-thread/issues/11429 github.com: https://github.com/RT-Thread/rt-thread/pull/11453 github.com: https://github.com/RT-Thread/rt-thread/

Credits

🔍 Zephyr Saxon (VulDB User) VulDB CNA Team