CVE-2026-14605

HIGH

RT-Thread ls1c CAN ls1c_can.h recvmsg stack-based overflow

Title source: cna
STIX 2.1

Description

A vulnerability was identified in RT-Thread up to 5.0.2. Affected by this vulnerability is the function recvmsg in the library bsp/loongson/ls1cdev/libraries/ls1c_can.h of the component ls1c CAN Handler. Such manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

References (6)

Core 6
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-376113 | RT-Thread ls1c CAN ls1c_can.h recvmsg stack-based overflow
https://vuldb.com/vuln/376113
Signature, Permissions Required signature permissions-required
VDB-376113 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/376113/cti
Third Party Advisory third-party-advisory
CVE-2026-14605 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-14605
Third Party Advisory third-party-advisory
Submit #844580 | RT-Thread v5.0.2 Out-of-bounds Write
https://vuldb.com/submit/844580

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 3.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121
Status published
Products (3)
None/RT-Thread 5.0.0
None/RT-Thread 5.0.1
None/RT-Thread 5.0.2
Published Jul 03, 2026
Tracked Since Jul 04, 2026