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Status published
High
CVE-2025-5688
Out of Bounds Write in FreeRTOS-Plus-TCP
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Amazon
View all reports →Affected Software
FreeRTOS
Vulnerable Versions:
2.3.4
Timeline
Official Publish:
June 4th, 2025
Last Modified:
October 14th, 2025
Added to House:
July 22nd, 2026