CVE-2025-5866

A vulnerability classified as critical has been found in RT-Thread 5.1.0. This affects the function sys_sigprocmask of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument how leads to improper validation of array index.

CVSS v3 8.0 HIGH
CVSS v2.0 7.4 HIGH

8.0^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.4^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:A/AC:M/Au:S/C:C/I:C/A:C

Exploitability : 4.4 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/RT-Thread/rt-thread/issues/10300	Exploit Issue Tracking Third Party Advisory
https://vuldb.com/?ctiid.311625	Permissions Required VDB Entry
https://vuldb.com/?id.311625	Third Party Advisory VDB Entry
https://vuldb.com/?submit.584127	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:o:rt-thread:rt-thread:5.1.0:*:*:*:*:*:*:*

History

11 Jul 2025, 18:19

Type	Values Removed	Values Added
Summary		(es) Se ha detectado una vulnerabilidad crítica en RT-Thread 5.1.0. Esta afecta a la función sys_sigprocmask del archivo rt-thread/components/lwp/lwp_syscall.c. La manipulación del argumento `how` provoca una validación incorrecta del índice de la matriz.
CPE		cpe:2.3:o:rt-thread:rt-thread:5.1.0:::::::*
First Time		Rt-thread Rt-thread rt-thread
References	~~() https://github.com/RT-Thread/rt-thread/issues/10300 -~~	() https://github.com/RT-Thread/rt-thread/issues/10300 - Exploit, Issue Tracking, Third Party Advisory
References	~~() https://vuldb.com/?ctiid.311625 -~~	() https://vuldb.com/?ctiid.311625 - Permissions Required, VDB Entry
References	~~() https://vuldb.com/?id.311625 -~~	() https://vuldb.com/?id.311625 - Third Party Advisory, VDB Entry
References	~~() https://vuldb.com/?submit.584127 -~~	() https://vuldb.com/?submit.584127 - Third Party Advisory, VDB Entry

09 Jun 2025, 07:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-09 07:15

Updated : 2025-07-11 18:19

NVD link : CVE-2025-5866

Mitre link : CVE-2025-5866

CVE.ORG link : CVE-2025-5866

JSON object : View

Products Affected

rt-thread

rt-thread

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-129

Improper Validation of Array Index

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8.0 /10