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Critical · 9.1 CVE-2026-42020 EUVD-2026-105345GHSA-vcwc-rc3q-4m7r

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup pppoe functionality of Totolink X2000R TOTOLINK-X2000R-…

Published Oct 20, 2026 · Updated Oct 28, 2026 · Assigned by talos

Description

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.

Affected products

VendorProductAffectedFixed
totolink Totolink TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 —

References