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VulnerabilityPublished Updated

CVE-2024-25388: rt-thread · Signed to Unsigned Conversion Error

Affects rt-threadSource CVE Database V5

0

Not known to be exploited · CVSS 8.4 High : upgrade to 5.0.3 soon.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 3.1 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.0.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Mar 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade rt-thread/rt-thread to 5.0.3.

Affected software

ProductAffectedFixed in
GitHubrt-thread/rt-threadpkg:github/rt-thread/rt-threadOther threatsAffected
  • <5.0.3
Fixed in
  • 5.0.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Restrict local access to devices running RT-Thread, especially those with WLAN capabilities, by enforcing strict physical security and network segmentation.
  2. Monitor WLAN management traffic and system logs for unusual activity indicative of exploitation attempts.
  3. Implement application whitelisting and integrity checks on embedded devices to detect unauthorized code execution.
  4. 5. Where patching is not immediately possible, consider disabling or limiting WLAN management features if feasible to reduce attack surface. 6. Conduct thorough security audits of embedded and IoT devices in the environment to identify RT-Thread usage and assess exposure. 7. Educate operational technology (OT) and IT teams about the risks of local access vulnerabilities and the importance of layered defense strategies.

Description

drivers/wlan/wlan_mgmt,c in RT-Thread through 5.0.2 has an integer signedness error and resultant buffer overflow.

References

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