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TI-2025-05295 Aliases CVE-2025-5867GHSA-mq4q-q9rw-jvph

RT-Thread lwp_syscall.c csys_sendto null pointer dereference

Priority MEDIUM 42CWE-404Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01214 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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-Thread5.1.0—No fix listedCNA
  • RT-Thread Vendor— Affected 5.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:rt-thread:rt-thread:5.1.0:*:*:*:*:*:*:*5.1.0VulnerableRT-Thread
  • cpe:2.3:o:rt-thread:rt-thread:5.1.0:*:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·RT-Thread

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5867
  2. 2026-10-03 Alias added: GHSA-mq4q-q9rw-jvph

References

Exploit 1

  • TI-2024-16722 A buffer overflow occurs in utilities/rt-link/src/rtlink.c in RT-Thread through 5.0.2. CVSS 3.1HIGH 8.8
  • TI-2025-05294 RT-Thread lwp_syscall.c sys_sigprocmask array index CVSS 4.0HIGH 8.6
  • TI-2025-05293 RT-Thread Parameter lwp_syscall.c sys_select memory corruption CVSS 4.0HIGH 8.6
  • TI-2024-16718 A stack buffer overflow occurs in libc/posix/ipc/mqueue.c in RT-Thread through 5.0.2. CVSS 3.1HIGH 8.4
  • TI-2024-16717 A heap buffer overflow occurs in finsh/msh_file.c and finsh/msh.c in RT-Thread through 5.0.2. CVSS 3.1HIGH 8.4
  • TI-2024-16715 drivers/wlan/wlan_mgmt,c in RT-Thread through 5.0.2 has an integer signedness error and resultant buffer overflow. CVSS 3.1HIGH 8.4
See all 16 →

Sources

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