Authentication Bypass in Tenda AC6 Router
CVE-2025-27129

9.8CRITICAL

Key Information:

Vendor

Tenda
Status
Ac6 V5.0
Vendor
CVE Published:
20 August 2025

What is CVE-2025-27129?

An authentication bypass vulnerability in the HTTP authentication mechanism of the Tenda AC6 router allows attackers to craft specific HTTP requests that can lead to arbitrary code execution. By sending specially structured packets, an attacker can exploit this weakness, potentially compromising the affected devices and enabling unauthorized access.

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Affected Version(s)

AC6 V5.0 V02.03.01.110

References

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

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

Credit

Discovered by Lilith >_> of Cisco Talos.
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