Stack-based Buffer Overflow Vulnerabilities in TOTOLINK Router X2000R

CVE-2026-42026

What is CVE-2026-42026?

The TOTOLINK X2000R router is affected by multiple stack-based buffer overflow vulnerabilities in the dhcp_dns functionality. These vulnerabilities can be triggered by sending specially crafted HTTP requests containing malicious payloads. An authenticated attacker could exploit these weaknesses, leading to arbitrary code execution on the affected devices. This poses significant risks to network security and integrity, especially if proper security measures are not in place.

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