CVE-2024-24334Public exploit

Code execution via unchecked path copying

Published Mar 27, 2024 · Updated Aug 1, 2024

Heap buffer overflow in RT-Thread through 5.0.2 allows local users to execute code or crash a device via a crafted filesystem path. The dfs_nolink_path() function copies path components and symbolic-link targets into a fixed heap allocation without checking the accumulated index and length. Reachability requires control of a fullpath processed by the DFS v2 filesystem; successful corruption can interrupt the device or execute code in the operating-system context.

CVSS severity8.4
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in RT-Thread through 5.0.2 allows local users to execute code or crash a device via a crafted filesystem path. The dfs_nolink_path() function copies path components and symbolic-link targets into a fixed heap allocation without checking the accumulated index and length. Reachability requires control of a fullpath processed by the DFS v2 filesystem; successful corruption can interrupt the device or execute code in the operating-system context.

The record

CVE
CVE-2024-24334
Published
Mar 27, 2024
Updated
Aug 1, 2024
Vendor
RT-Thread
Product
RT-Thread
Classifications
CWE-122
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=5.0.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

RT-Thread · RT-Threadversion=0 <=5.0.2

Published CVSS scores

8.4CISA ADP VulnrichmentCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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