CVE-2026-116505

TOTOLINK A950RG device-information udhcpd.leases getDeviceInfo command injection

Critical 9.4
A public exploit reference is listed

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.

Key facts

Published: 26 Oct 2026
Last changed: 31 Oct 2026
Assigned by: VulDB
EPSS: 2.741% likely to be exploited in the next 30 days, higher than 86.403% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: poc; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

9.4CVSS 4.0, Criticalfrom the CNA (VulDB)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.1CVSS 3.1, Criticalfrom the CNA (VulDB)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.1CVSS 3.0, Criticalfrom the CNA (VulDB)CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
8.3CVSS 2.0, Highfrom the CNA (VulDB)AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
TOTOLINK	A950RG	4.1.2cu.5268_B20221104 (affected)

Timeline

26 Oct 2026 Advisory disclosed
26 Oct 2026 VulDB entry created
26 Oct 2026 VulDB entry last update
26 Oct 2026 Published

Weakness

References

VDB-426403 | TOTOLINK A950RG device-information udhcpd.leases getDeviceInfo command injectionvdb-entrytechnical-description
VDB-426403 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-116505 | CVE Analysis and Reportthird-party-advisory
Submit #1022554 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Command Injectionthird-party-advisory
gist.github.comexploit
www.totolink.netproduct