CVE-2024-25395
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA buffer overflow occurs in utilities/rt-link/src/rtlink.c in RT-Thread through 5.0.2.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA buffer overflow vulnerability exists in the rtlink.c file within the utilities/rt-link component of RT-Thread real-time operating system through version 5.0.2. The vulnerability allows potential remote or local attackers to exploit improper bounds checking, potentially leading to code execution or denial of service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 5.0.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm RT-Thread is the operating system in useIdentify the OS by checking system files, build configurations, or boot logs for 'RT-Thread' or 'rt-thread' referencesAffected if The system runs RT-Thread as the underlying real-time operating system
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Determine the installed RT-Thread versionCheck the version via build configuration files (Kconfig), version headers (typically in include/rtdef.h or similar), or the RT-Thread package manager configuration showing the version numberAffected if The version is 5.0.2 or earlier
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Locate the rtlink.c source file in the utilities/rt-link componentSearch the codebase or firmware image for the file 'rtlink.c' within a 'utilities/rt-link' directory path or moduleAffected if The rtlink.c file exists in the rt-link component of the codebase
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Verify the rt-link utility is enabled or compiled into the firmwareInspect the RT-Thread configuration (RT-Thread Studio project, Kconfig, or menuconfig) to see if 'rt-link' or 'RT_USING_RTLINK' is selected and compiledAffected if The rt-link utility module is enabled and compiled into the system
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Check for buffer overflow vulnerabilities in rtlink.cIf source code is accessible, review rtlink.c for memcpy, strcpy, or similar functions lacking proper bounds checking on the buffer operations referenced in the vulnerabilityAffected if The code contains unbounded buffer operations in rtlink.c and the rt-link component is in use
A user is affected if they are running RT-Thread version 5.0.2 or earlier with the rt-link utility component enabled and the vulnerable rtlink.c file present in their build.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade RT-Thread to version 5.0.3 or later which contains the patch for this vulnerability. If upgrading is not immediately feasible, implement input validation and bounds checking in the rtlink.c file to prevent buffer overflows.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-25395 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-25395 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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