CVE-2024-25389

Name: CVE-2024-25389
Creator: NVD / NIST
Published: 2024-03-27T03:15:11.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2024-25389 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.82%

52.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-338

Affected Software

Vendor	Product	Versions
Rt-Thread	Rt-Thread	<= 5.0.2

References

http://www.openwall.com/lists/oss-security/2024/03/05/1Issue Tracking, Mailing List
https://github.com/RT-Thread/rt-thread/issues/8283Issue Tracking, Mitigation
https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txtThird Party Advisory
https://seclists.org/fulldisclosure/2024/Mar/28Mailing List
https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/Third Party Advisory
http://seclists.org/fulldisclosure/2024/Mar/28
http://www.openwall.com/lists/oss-security/2024/03/05/1Issue Tracking, Mailing List
https://github.com/RT-Thread/rt-thread/issues/8283Issue Tracking, Mitigation
https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txtThird Party Advisory
https://seclists.org/fulldisclosure/2024/Mar/28Mailing List
https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/Third Party Advisory

Timeline

Published: Mar 27, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-25389?

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.

How severe is CVE-2024-25389?

CVE-2024-25389 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2024-25389?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-25389?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST