OS Command Injection Vulnerability in Totolink A7100RU by Totolink
CVE-2026-5995

9.3CRITICAL

Key Information:

Vendor

Totolink
Status
A7100ru
Vendor
CVE Published:
10 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5995?

A vulnerability has been discovered in the CGI Handler of the Totolink A7100RU, particularly within the setMiniuiHomeInfoShow function of the /cgi-bin/cstecgi.cgi file. This weakness allows for manipulation of the lan_info parameter, enabling attackers to execute arbitrary OS commands remotely. The availability of the exploit has raised concerns regarding the potential exploitation by malicious actors, necessitating immediate attention from users to secure their devices.

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.

CVE-2026-5995 - Proof of Concept

References

https://vuldb.com/vuln/356549
vdb-entrytechnical-description
https://vuldb.com/vuln/356549/cti
signaturepermissions-required
https://vuldb.com/submit/792043
third-party-advisory

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

LtzHust (VulDB User)
.