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Critical · 9.1 CVE-2026-9659 EUVD-2026-105336GHSA-7crj-p2x6-x2g5

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s): TOTOLINK-…

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

Description

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s): 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 deals with the vpnUser parameter.

Affected products

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

References