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CVE-2026-7422

MEDIUM

6.5

Description

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection mechanism skips all input validation for packets whose source MAC matches a local endpoint. To mitigate this issue, users should upgrade to the fixed version when available.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vecteur d'attaqueADJACENT_NETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/29/2026

Derniere modification5/4/2026

Sourcenvd

Observations honeypot0

Produits affectes

amazon:freertos-plus-tcp

Faiblesses (CWE)

CWE-290

References

https://aws.amazon.com/security/security-bulletins/2026-021-aws/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-jpw4-6h59-62w9(ff89ba41-3aa1-4d27-914a-91399e9639e5)

Correlations IOC

Aucune correlation enregistree

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