CVE-2025-11618
Full vulnerability record from the local CVENow database.
Description
A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6. We recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.
Severity
MEDIUM
CVSS score
5.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
ff89ba41-3aa1-4d27-914a-91399e9639e5
Published
2025-10-10 18:15:38.460000
Last modified
2026-11-05 20:05:16.133000
View original CVE JSON
{
"id": "CVE-2025-11618",
"sourceIdentifier": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"published": "2025-10-10T18:15:38.460",
"lastModified": "2026-11-05T20:05:16.133",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6.\n\nWe recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes."
},
{
"lang": "es",
"value": "Una comprobación de validación faltante en el código de procesamiento de paquetes UDP/IPv6 de FreeRTOS-Plus-TCP puede llevar a una desreferencia de puntero no válida al recibir un paquete UDP/IPv6 con un campo de versión IP incorrecto en la cabecera del paquete. Este problema solo afecta a las aplicaciones que utilizan IPv6.\n\nRecomendamos actualizar a la última versión y asegurar que cualquier código bifurcado o derivado sea parcheado para incorporar las nuevas correcciones."
}
],
"affected": [
{
"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"affectedData": [
{
"vendor": "AWS",
"product": "FreeRTOS-Plus-TCP",
"defaultStatus": "unaffected",
"versions": [
{
"version": "4.0.0",
"lessThan": "4.3.4",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
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"cvssMetricV31": [
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"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
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"availabilityImpact": "LOW"
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"impactScore": 1.4
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"ssvcV203": [
{
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"ssvcData": {
"timestamp": "2025-10-10T20:30:56.422981Z",
"id": "CVE-2025-11618",
"options": [
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"exploitation": "none"
},
{
"automatable": "no"
},
{
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"role": "CISA Coordinator",
"version": "2.0.3"
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"weaknesses": [
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"description": [
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"value": "CWE-476"
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"configurations": [
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"nodes": [
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"negate": false,
"cpeMatch": [
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"references": [
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"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"tags": [
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},
{
"url": "https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-6fh9-mqxj-hmwj",
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}