CVE-2024-25393: rt-thread · Stack-based Buffer Overflow
Affects rt-threadSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical : upgrade to 5.0.3 as a priority.
Data as of 26 Oct 2026, 12:29 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 64% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.0.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 Mar 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
GitHubrt-thread/rt-threadpkg:github/rt-thread/rt-threadOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Monitor RT-Thread vendor channels and security advisories for official patches addressing CVE-2024-25393 and apply them immediately upon release.
- In the interim, restrict network access to devices running RT-Thread, especially limiting exposure of the AT command server component to untrusted networks.
- Employ network segmentation and firewall rules to isolate vulnerable embedded devices from critical infrastructure and sensitive networks.
- Implement intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection capable of identifying malformed AT command packets or unusual traffic patterns targeting the at_server component.
- Conduct thorough inventory and asset management to identify all RT-Thread deployments within the organization, including embedded and IoT devices.
- Where possible, disable or limit the functionality of the AT command server if not required for device operation.
- Engage with device manufacturers to confirm patch availability and timelines, and request security updates if none are forthcoming.
- Prepare incident response plans tailored to embedded device compromise scenarios to enable rapid containment and recovery.
Description
A stack buffer overflow occurs in net/at/src/at_server.c in RT-Thread through 5.0.2.
References
- github.com/RT-Thread/rt-thread/issues/8288 (opens in a new tab)
- github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt (opens in a new tab)
- security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/ (opens in a new tab)
- seclists.org/fulldisclosure/2024/Mar/28 (opens in a new tab)
- openwall.com/lists/oss-security/2024/03/05/1 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Mar/28 (opens in a new tab)