CVE-2025-5866 | THREATINT

Description

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.

Es wurde eine Schwachstelle in RT-Thread 5.1.0 entdeckt. Sie wurde als kritisch eingestuft. Es betrifft die Funktion sys_sigprocmask der Datei rt-thread/components/lwp/lwp_syscall.c. Mittels Manipulieren des Arguments how mit unbekannten Daten kann eine improper validation of array index-Schwachstelle ausgenutzt werden.

Reserved 2025-06-08 | Published 2025-06-09 | Updated 2025-06-09 | Assigner VulDB

HIGH: 8.6CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X

HIGH: 8.0CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

HIGH: 8.0CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

7.4AV:A/AC:M/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR

Problem types

Improper Validation of Array Index

Memory Corruption

Timeline

2025-06-08:	Advisory disclosed
2025-06-08:	VulDB entry created
2025-06-08:	VulDB entry last update

Credits

Zephyr Saxon (VulDB User) reporter

References

vuldb.com/?id.311625 (VDB-311625 | RT-Thread lwp_syscall.c sys_sigprocmask array index) vdb-entry technical-description

vuldb.com/?ctiid.311625 (VDB-311625 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.584127 (Submit #584127 | RT-Thread 5.1.0 Improper Handling of Parameters) third-party-advisory

github.com/RT-Thread/rt-thread/issues/10300 issue-tracking

cve.org (CVE-2025-5866)

nvd.nist.gov (CVE-2025-5866)

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