CVE-2026-9659

State: Published
Severity: 9.1 Critical
Published: Oct 20, 2026
Updated: Oct 28, 2026
Reserved: May 26, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	talos

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
Totolinktotolink	TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327Affected

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2425

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