RT-Thread 5.1.0 lwp_syscall.c csys_sendto null pointer dereference

Summaryinfo

A vulnerability classified as critical was found in RT-Thread 5.1.0. The impacted element is the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. Executing a manipulation of the argument to can lead to null pointer dereference. This vulnerability is handled as CVE-2025-5867. There is not any exploit available.

Detailsinfo

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 with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2025-5867. The exploitation appears to be easy. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-17443). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• RT-Thread

Version

• 5.1.0

Website

• Product: https://github.com/RT-Thread/rt-thread/

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.0
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.0
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/08/2025 Advisory disclosed
06/08/2025 +0 days VulDB entry created
06/09/2025 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 10299
Status: Not defined

CVE: CVE-2025-5867 (🔒)
GCVE (CVE): GCVE-0-2025-5867
GCVE (VulDB): GCVE-100-311626
EUVD: 🔒

Entryinfo

Created: 06/08/2025 19:41
Updated: 06/09/2025 11:22
Changes: 06/08/2025 19:41 (53), 06/09/2025 10:43 (30), 06/09/2025 11:22 (1)
Complete: 🔍
Submitter: Zephyr Saxon
Cache ID: 216::103

Submitinfo

Accepted

• Submit #584129: RT-Thread 5.1.0 Improper Handling of Parameters (by Zephyr Saxon)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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