CVE-2025-5688

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Source
https://cve.org/CVERecord?id=CVE-2025-5688
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5688.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-5688
Aliases
  • GHSA-5x4f-fvv8-wr65
Published
2025-06-04T17:09:54Z
Modified
2026-10-28T02:30:41Z
Severity
  • 7.5 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Out of Bounds Write in FreeRTOS-Plus-TCP
Details

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.

Database specific 
{
    "cna_assigner": "AMZN",
    "cwe_ids": [
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/5xxx/CVE-2025-5688.json"
}
References

Affected packages

Git / github.com/freertos/freertos-plus-tcp

Affected ranges

Type
GIT
Repo
https://github.com/freertos/freertos-plus-tcp
Events
Introduced
de36c605a89a40d81c385dfcd0e8f6bf4017eb0e
Fixed
21c0438b73c7a22f8c7b08d0ff5ac8a5e1e21a97
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.3.4"
                },
                {
                    "fixed": "4.3.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "V4.3.2",
            "range": [
                {
                    "fixed": "21c0438b73c7a22f8c7b08d0ff5ac8a5e1e21a97"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

V2.*
V2.3.4
V2.4.0
V4.*
V4.0.0-appsec
V4.3.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5688.json"