Command Injection Vulnerability in TOTOLINK A950RG Router
CVE-2026-116505

9.4CRITICAL

Key Information:

Vendor

Totolink
Status
A950rg
Vendor
CVE Published:
26 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-116505?

A command injection vulnerability exists in the TOTOLINK A950RG router, specifically in the getDeviceInfo function located in the /var/lib/misc/udhcpd.leases file. This flaw arises from improper handling of the MAC address argument, enabling attackers to execute arbitrary commands on the device remotely. The vulnerability has been publicly disclosed, raising concerns regarding the security of affected devices and highlighting the necessity for users to apply relevant software updates.

Affected Version(s)

A950RG 4.1.2cu.5268_B20221104

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-2026-116505 - Proof of Concept

References

https://vuldb.com/vuln/426403
vdb-entrytechnical-description
https://vuldb.com/vuln/426403/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116505
third-party-advisory

CVSS V4

Score:
9.4
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

LiuYijun_JX.SGCC (VulDB User)
.