Vulnerability DatabaseCVE-2025-5688
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CVE-2025-5688
June 04, 2025
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.
Affected Packages
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP.git (GITHUB):
Affected version(s) >=V2.3.4 <V4.3.2
Fix Suggestion:
Update to version V4.3.2
Related Resources (3)
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.2
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-5x4f-fvv8-wr65
https://aws.amazon.com/security/security-bulletins/AWS-2025-012/
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CVSS v4
Base Score:
7.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.03