Command Injection Vulnerability in Totolink A7100RU by Totolink
CVE-2026-6156
9.3CRITICAL
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-6156?
A security vulnerability exists in the Totolink A7100RU router, specifically within the setIpQosRules function of the CGI Handler component. The flaw allows an attacker to manipulate the 'Comment' argument, which can lead to OS command injection. This type of attack enables remote exploitation, where the attacker can execute arbitrary commands on the device, potentially compromising its integrity and the security of the network.
Affected Version(s)
A7100RU 7.4cu.2313_b20191024
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
LtzHust2 (VulDB User)