Critical severity9.1NVD Advisory· Published Oct 20, 2026
CVE-2026-42026
CVE-2026-42026
Description
Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns 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 concerns the dhcp_dns2 parameter.
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Affected products
1Patches
Vulnerability mechanics
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