Stack-Based Buffer Overflow in Totolink X2000R Network Configuration
CVE-2026-42024

9.1CRITICAL

Key Information:

Vendor

Totolink
Status
Totolink
Vendor
CVE Published:
20 October 2026

What is CVE-2026-42024?

Multiple stack-based buffer overflow vulnerabilities have been identified in the static network configuration functionality of the Totolink X2000R router. These vulnerabilities arise from improper handling of HTTP requests targeting the 'static_gw' parameter. An attacker could exploit this by sending specially crafted requests, potentially leading to arbitrary code execution on the affected device. It is essential for users and administrators to ensure their devices are updated to mitigate risks associated with this vulnerability.

Affected Version(s)

Totolink TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

References

https://talosintelligence.com/vulnerability_reports/TALOS...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Discovered by Lilith Wyatt of Cisco Talos
.