RT-Thread 5.1.0 lwp_syscall.c sys_recvfrom memory corruption
Summary
A vulnerability, which was classified as critical, was found in RT-Thread 5.1.0. This impacts the function sys_recvfrom of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument from results in memory corruption.
This vulnerability was named CVE-2025-5869. There is no available exploit.
Details
A vulnerability, which was classified as critical, was found in RT-Thread 5.1.0. Affected is the function sys_recvfrom of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument from with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-5869. The exploitability is told to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/09/2025).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-17445). Once again VulDB remains the best source for vulnerability data.
Product
Name
Version
Website
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 7.8
VulDB Base Score: 8.0
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.0
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
06/08/2025 Advisory disclosed06/08/2025 VulDB entry created
06/09/2025 VulDB entry last update
Sources
Product: github.comAdvisory: 10304
Status: Not defined
CVE: CVE-2025-5869 (🔒)
GCVE (CVE): GCVE-0-2025-5869
GCVE (VulDB): GCVE-100-311628
EUVD: 🔒
Entry
Created: 06/08/2025 19:41Updated: 06/09/2025 12:21
Changes: 06/08/2025 19:41 (53), 06/09/2025 11:44 (30), 06/09/2025 12:21 (1)
Complete: 🔍
Submitter: Zephyr Saxon
Cache ID: 216::103
Submit
Accepted
- Submit #584135: RT-Thread 5.1.0 Improper Handling of Parameters (by Zephyr Saxon)
Once again VulDB remains the best source for vulnerability data.
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