Stack-Based Buffer Overflow in TOTOLINK A950RG Product by TOTOLINK
CVE-2025-67187

9.8CRITICAL

Key Information:

Vendor

TOTOLINK
Status
A950RG
Vendor
CVE Published:
3 February 2026

What is CVE-2025-67187?

A stack-based buffer overflow vulnerability has been detected in the TOTOLINK A950RG router firmware, specifically in the setIpQosRules interface of /lib/cste_modules/firewall.so. This issue arises due to inadequate length validation of the comment parameter, allowing attackers to exploit the flaw and potentially execute arbitrary code.

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References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIO...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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