CVE-2026-42021
CRITICAL
NVD
CVSS Score
9.1
Severity
CRITICAL
Published
Oct 20, 2026
Vendor
unknown
Description
Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration 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 static_dns1 parameter.