Stack-Based Buffer Overflow in X2000R by TOTOLINK
CVE-2026-41223

9.1CRITICAL

Key Information:

Vendor

Totolink
Status
Totolink
Vendor
CVE Published:
20 October 2026

What is CVE-2026-41223?

A stack-based buffer overflow vulnerability in the boa formMapDelDevice macstr functionality of the TOTOLINK X2000R router may allow attackers to execute arbitrary code. By sending specially crafted HTTP requests, an authenticated attacker can exploit this vulnerability, potentially leading to unauthorized control of the affected system. It's essential for users of the X2000R to apply necessary patches and updates to mitigate this risk.

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
.