CVE-2025-5688
Out of Bounds Write in FreeRTOS-Plus-TCP
- State
- Published
- Severity
- 7.5 High
- Published
- Jun 4, 2025
- Updated
- Oct 14, 2025
- Reserved
- Jun 4, 2025
Description
We have identified a buffer overflow issue allowing out-of-bounds write when processing LLMNR or mDNS queries with very long DNS names. This issue only affects systems using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled.
Users should upgrade to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.5 High | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | AMZN |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
FreeRTOSAmazon |
|
References
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