CVE-2024-25389

HIGH

Published Mar 27, 2024 Modified Nov 4, 2025 CWE-338

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.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-338 CWE-338

Affected Products

Vendor	Product	Versions
rt-thread	rt-thread	< 5.0.2

References

Other References

http://www.openwall.com/lists/oss-security/2024/03/05/1 https://github.com/RT-Thread/rt-thread/issues/8283 https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt https://seclists.org/fulldisclosure/2024/Mar/28 https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/ http://seclists.org/fulldisclosure/2024/Mar/28 http://www.openwall.com/lists/oss-security/2024/03/05/1 https://github.com/RT-Thread/rt-thread/issues/8283 https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt https://seclists.org/fulldisclosure/2024/Mar/28

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-25389? +

CVE-2024-25389 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-25389? +

CVE-2024-25389 affects products from rt-thread, specifically: rt-thread. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-25389? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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