CVE-2024-25389

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 57.3%
KEV: Not listed

Published

March 27, 2024

Last Modified

November 4, 2025

References (11)

cve@mitrehttp://www.openwall.com/lists/oss-security/2024/03/05/1
cve@mitrehttps://github.com/RT-Thread/rt-thread/issues/8283
cve@mitrehttps://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt
cve@mitrehttps://seclists.org/fulldisclosure/2024/Mar/28
cve@mitrehttps://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Mar/28
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/03/05/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/RT-Thread/rt-thread/issues/8283
af854a3a-2127-422b-91ae-364da2661108https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/fulldisclosure/2024/Mar/28
af854a3a-2127-422b-91ae-364da2661108https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2024-25389?

CVE-2024-25389 is a high vulnerability published on March 27, 2024. RT-Thread through 5.0.2 generates random numbers with a weak algorithm of "seed = 214013L * seed + 2531011L; return (seed >> 16) & 0x7FFF;" in calcrandom in drivers/misc/rtrandom.c.

When was CVE-2024-25389 disclosed?

CVE-2024-25389 was first published in the National Vulnerability Database on March 27, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-25389 actively exploited?

CVE-2024-25389 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-25389?

CVE-2024-25389 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2024-25389?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-25389, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2024-25389

📅 Published

🔄 Last Modified

🔗 References (11)