MEDIUM🇵🇱 Wersja polska

CVE-2026-7426

CVSS 6.1v4.0pub. 2026-04-29upd. 2026-05-04

Insufficient validation of the prefix length field in IPv6 Router Advertisement processing in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause memory corruption by sending a crafted Router Advertisement with a prefix length value exceeding the maximum valid length, resulting in a heap buffer overflow. Users processing IPv4 RA only are not impacted. To mitigate this issue, users should upgrade to the fixed version when available.

CVSS Vector
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/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

  • Amazon Freertos Plus Tcp

    APP
    Amazon
    4.0.0 – 4.2.6 (bez)4.3.0 – 4.4.1 (bez)
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
Memory
CWE
References

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