CVE-2026-116505 Details
Description
A vulnerability was found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This impacts the function getDeviceInfo of the file /var/lib/misc/udhcpd.leases of the component device-information Handler. The manipulation of the argument MAC address results in command injection. The attack can be launched remotely. The exploit has been made public and could be used.
A command injection vulnerability has been identified in the TOTOLINK A950RG router, specifically in the firmware version 4.1.2cu.5268_B20221104. The issue arises in the device-information handler of the LAN module, within the 'getDeviceInfo' function. Here, the router improperly processes MAC addresses sourced from the DHCP lease database, allowing attackers to inject arbitrary commands that are executed with root privileges. This vulnerability can be exploited remotely, taking advantage of the DHCP client's lease database to craft a successful attack.
To address this vulnerability, the router's firmware should be updated to a version that removes the command injection flaw. Users can check the TOTOLINK support portal or contact TOTOLINK for guidance on obtaining the latest firmware.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Oct 31, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/H3rmesk1t/836a8c4be24fcc4b7041b4bbe9cbb178 | [email protected] | ExploitRemedyTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-116505 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1022554 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/426403 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/426403/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TOTOLINK A950RG | V4.1.2cu.5268_B20221104 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 31, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |