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TI-2026-12326 Aliases CVE-2026-14629GHSA-jp84-4rqr-29c5

RT-Thread Parameter lwp_syscall.c sys_ioctl divide by zero

Priority MEDIUM 57CWE-369Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-369.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00533 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—RT-Thread5.2.0; 5.2.1; 5.2.2—No fix listedCNA
  • RT-Thread Vendor— Affected 5.2.0; 5.2.1; 5.2.2 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:rt-thread:rt-thread:*:*:*:*:*:*:*:*——RT-Thread
  • cpe:2.3:a:rt-thread:rt-thread:*:*:*:*:*:*:*:* Versions — — ·RT-Thread

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14629
  2. 2026-10-03 Alias added: GHSA-jp84-4rqr-29c5

References

Exploit 1

Patch 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences