Authentication Bypass in TOTOLINK A7000R Firmware
CVE-2025-51452

9.8CRITICAL

Key Information:

Vendor

TOTOLINK
Status
A7000R Firmware
Vendor
CVE Published:
13 August 2025

What is CVE-2025-51452?

The vulnerability in TOTOLINK A7000R firmware version 9.1.0u.6115_B20201022 allows attackers to exploit a loophole in the authentication process. By sending a specially crafted request through the formLoginAuth.htm page, unauthorized individuals can gain access without valid login credentials. This flaw poses significant security threats, making it crucial for users to apply patches and secure their devices against potential unauthorized access.

References

https://www.totolink.net/home/menu/detail/menu_listtpl/do...
http://a7000rfirmware.com
https://gist.github.com/lin-3-start/5b20f6fbe3aa0c3fc75f3...

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

.