CVE-2026-7426: amazon freertos-plus-tcp

csirt@kutim:~/threat-intel/cve/CVE-2026-7426

CVSS 8.1 · High EPSS 0,40%

Kerentanan Out-of-bounds Write pada amazon freertos-plus-tcp. Skor CVSS 3.1 8.1 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD: 29 April 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 8.1 (High), sumber CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-787: Out-of-bounds Write
EPSS (30 hari): 0,40% peluang dieksploitasi; lebih tinggi dari 32,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
amazon	freertos-plus-tcp	Versi 4.0.0 hingga sebelum 4.2.6
amazon	freertos-plus-tcp	Versi 4.3.0 hingga sebelum 4.4.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://aws.amazon.com/security/security-bulletins/2026-023-aws/ advisory vendor
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-97qg-4359-xm3x patch · advisory vendor
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6 release notes
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1 release notes

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.