CVE-2025-5866

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119 CWE-129

Affected software

Vendor	Product	Versions
n/a	RT-Thread	5.1.0

References

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

Timeline

Published: Jun 9, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-586605.4Missing Authorization vulnerability in brandexponents Oshine Core oshine-core allows Exploiting Incorrectly Configured Access Control Securi CVE-2025-586615.9Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in eZee Technosys eZee Online Hotel Booki CVE-2025-586627.2Deserialization of Untrusted Data vulnerability in awesomesupport Awesome Support awesome-support allows Object Injection.This issue affects CVE-2025-586634.3Missing Authorization vulnerability in Themeum Qubely qubely allows Exploiting Incorrectly Configured Access Control Security Levels.This is CVE-2025-586644.3Missing Authorization vulnerability in Azizul Hasan Text To Speech TTS Accessibility text-to-audio allows Exploiting Incorrectly Configured CVE-2025-586655.9Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tmontg1 Form Generator for WordPress f CVE-2025-586664.3Missing Authorization vulnerability in Kommo Website Chat Button: Kommo integration website-chat-button-kommo-integration allows Exploiting CVE-2025-586675.4Missing Authorization vulnerability in CridioStudio ListingPro Reviews listingpro-reviews allows Exploiting Incorrectly Configured Access Co CVE-2025-586689.8Missing Authorization vulnerability in VibeThemes WPLMS wplms allows Exploiting Incorrectly Configured Access Control Security Levels.This CVE-2025-586695.9Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Modern Minds Magento 2 WordPress Integ CVE-2025-58679.8A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thre CVE-2025-586707.1Cross-Site Request Forgery (CSRF) vulnerability in Shankaranand Maurya WP Content Protection wp-content-protection allows Stored XSS.This is