RT-Thread lwp_syscall.c sys_recvfrom memory corruption
Priority LOW 39CWE-119Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- 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-119 and the CVSS impact.
Summary
A vulnerability, which was classified as critical, was found in RT-Thread 5.1.0. Affected is the function sys_recvfrom of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument from leads to memory corruption.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00897 59th 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
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | RT-Thread | 5.1.0 | — | No fix listed | CNA |
- RT-Thread Vendor— Affected 5.1.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5869
- 2026-10-03 Alias added: GHSA-xr69-f8gw-5vr7
References
More Rt-thread vulnerabilities
- 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
Sources
- CVE-2025-5869 · CVE Program
- CVE-2025-5869 · NVD
- FIRST EPSS
- GHSA-xr69-f8gw-5vr7 · GitHub Advisory Database · CC BY 4.0
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