What’s Vulnerable › Vulnerabilities

CVE-2025-5867: RT-Thread lwp_syscall.c csys_sendto null pointer dereference

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-09 · updated 2026-06-17
• Weakness: CWE-404

Description

A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.

Affected products

• RT-Thread: 5.1.0

References

• https://github.com/RT-Thread/rt-thread/issues/10299
• https://vuldb.com/?ctiid.311626
• https://vuldb.com/?id.311626
• https://vuldb.com/?submit.584129

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