CVE-2024-25389

high

Description

RT-Thread through 5.0.2 generates random numbers with a weak algorithm of "seed = 214013L * seed + 2531011L; return (seed >> 16) & 0x7FFF;" in calc_random in drivers/misc/rt_random.c.

References

Advisories
More

https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/

https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt

https://seclists.org/fulldisclosure/2024/Mar/28

https://github.com/RT-Thread/rt-thread/issues/8283

http://www.openwall.com/lists/oss-security/2024/03/05/1

http://seclists.org/fulldisclosure/2024/Mar/28

Details

Source: Mitre, NVD

Published: 2024-03-27

Updated: 2025-11-04

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

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