CVE-2026-14607: RT-Thread lwp_syscall.c sys_getaddrinfo memory corruption

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-03 · updated 2026-07-06
Weakness: CWE-119

Description

A weakness has been identified in RT-Thread up to 5.0.2. This affects the function sys_getaddrinfo of the file components/lwp/lwp_syscall.c. Executing a manipulation of the argument ai_addr can lead to memory corruption. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

Affected products

RT-Thread: 5.0.0, 5.0.1, 5.0.2

References

https://github.com/RT-Thread/rt-thread/
https://github.com/RT-Thread/rt-thread/issues/11428
https://github.com/RT-Thread/rt-thread/pull/11454
https://vuldb.com/cve/CVE-2026-14607
https://vuldb.com/submit/844622
https://vuldb.com/vuln/376115
https://vuldb.com/vuln/376115/cti

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