Home/CVE/A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto
CVE

CVE-2025-5867

A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto

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.

HIGH · CVSS 8 EPSS 0.01154
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-404Improper Resource Shutdown or Release
CWE-476NULL Pointer Dereference
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
rt-threadall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · 10299github.com
▣

Scoring & Timeline

8
HIGH · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jun 2025 · 08:15 AM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/?ctiid.311626Permissions RequiredVDB Entry
https://vuldb.com/?id.311626Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.584129Third Party AdvisoryVDB Entry
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