CVE-2026-42020

Publié : 20 octobre 2026

Modifié : 20 octobre 2026

Score CVSS

9.1

CRITICAL

Description détaillée

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup pppoe functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the pppoe_dns2 parameter.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Références et Patchs

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2394

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