Vulnerability in Rt-Thread
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/RT-Thread/rt-thread/issues/8283 (Mitigation, Issue Tracking)
- github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt (Third Party Advisory)
- security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/ (Third Party Advisory)
- seclists.org/fulldisclosure/2024/Mar/28 (Mailing List)
- www.openwall.com/lists/oss-security/2024/03/05/1 (mailing-list, Mailing List, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-25389?
- CVE-2024-25389 is a high-severity vulnerability in Rt-Thread, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 7.5/10. Published 2024-03-27.
- How severe is CVE-2024-25389?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-25389 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.