CVE-2026-9817

A stack-based buffer overflow vulnerability exists in the boa formUploadFile 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 this vulnerability.

Score

CVSS 3.1 9.1 Critical

Status

Deferred - talos-cna@cisco.com

Published

2026-10-20

Last modified

2026-10-23

Weaknesses

CWE-121

Affected products

• Totolink (Totolink)

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2026-2429