CVE-2025-5868 is a critical vulnerability affecting RT-Thread version 5.1.0, specifically within the sys_thread_sigprocmask function in lwp_syscall.c. This flaw, stemming from improper validation of an array index when manipulating the 'how' argument, allows for severe impacts. With a CVSS score of 9.8, it is easily exploitable over the network without user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation, public exploit code, or inclusion in the KEV catalog, the vulnerability has garnered significant community discussion, indicating awareness and potential future exploitation attempts.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.1.0CPE matchmatch criteria | cpe:2.3:o:rt-thread:rt-thread:5.1.0:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.