PT-2025-24411 · Rt-Thread · Rt-Thread

Zephyr Saxon · Published 2025-06-09 · Updated 2025-06-14 · CVE-2025-5867

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions RT-Thread version 5.1.0

Description A critical vulnerability was found in the csys sendto function of the file rt-thread/components/lwp/lwp syscall.c. The manipulation of the argument to leads to null pointer dereference. This issue can cause a null pointer dereference when exploited.

Recommendations For RT-Thread version 5.1.0, consider disabling the csys sendto function as a temporary workaround until a patch is available. Restrict access to the lwp syscall.c file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

CVE-2025-5867

Affected Products

Rt-Thread

References · 12

• 🔥 https://github.com/RT-Thread/rt-thread/issues/10299 · Exploit
• https://osv.dev/vulnerability/CVE-2025-5867 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-5867 · Security Note
• https://t.me/cvenotify/125046 · Telegram Post
• https://vuldb.com/?submit.584129 · Note
• https://twitter.com/cracbot/status/1933841913901433274 · Twitter Post
• https://vuldb.com/?id.311626 · Note
• https://vuldb.com/?ctiid.311626 · Note
• https://twitter.com/CVEnew/status/1931982196123877691 · Twitter Post
• https://t.me/latest_high_impact_cve/2585 · Telegram Post
• https://twitter.com/CveFindCom/status/1931979557302624684 · Twitter Post
• https://t.me/cvetracker/25758 · Telegram Post