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

Quick assessment

Affected
n/a RT-Thread
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RT-Thread是RT-Thread开源的一个开源物联网实时操作系统（RTOS）。 RT-Thread 5.1.0版本存在安全漏洞，该漏洞源于文件rt-thread/components/lwp/lwp_syscall.c中参数to的操作导致空指针取消引用。

CVSS 8.0 · High EPSS 1.24% · P68

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5867

Vulnerability Information
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Vulnerability Title
RT-Thread lwp_syscall.c csys_sendto null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
RT-Thread 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RT-Thread是RT-Thread开源的一个开源物联网实时操作系统（RTOS）。 RT-Thread 5.1.0版本存在安全漏洞，该漏洞源于文件rt-thread/components/lwp/lwp_syscall.c中参数to的操作导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- RT-Thread 5.1.0 -

II. Public POCs for CVE-2025-5867

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III. Intelligence Information for CVE-2025-5867

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Same Patch Batch · n/a · 2025-06-09 · 17 CVEs total

CVE-2025-5869 8.0 HIGH RT-Thread lwp_syscall.c sys_recvfrom memory corruption
CVE-2025-5868 8.0 HIGH RT-Thread lwp_syscall.c sys_thread_sigprocmask array index
CVE-2025-5866 8.0 HIGH RT-Thread lwp_syscall.c sys_sigprocmask array index
CVE-2025-5865 8.0 HIGH RT-Thread Parameter lwp_syscall.c sys_select memory corruption
CVE-2025-5874 4.6 MEDIUM Redash getattr python.py run_query sandbox
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CVE-2025-5892 4.3 MEDIUM RocketChat parseMessage.js parseMessage redos
CVE-2025-5880 4.3 MEDIUM Whistle get-temp-file path traversal
CVE-2025-5886 3.5 LOW Emlog article.php cross site scripting
CVE-2025-46178 CloudClassroom-PHP-Project 安全漏洞
CVE-2025-45055 Silverpeas 安全漏洞
CVE-2025-45002 Vigybag 安全漏洞
CVE-2024-46452 VigyBag Open Source Online Shop 安全漏洞
CVE-2025-45001 npm react-native-keys 安全漏洞
CVE-2025-29627 Keeper Security KeeperChat IOS Application 安全漏洞
CVE-2025-46041 Anchor CMS 安全漏洞

IV. Related Vulnerabilities

Same product: RT-Thread
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2025-5867

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