CVE-2026-11834
Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers
A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized command execution during device initialization or provisioning workflows. This typically occurs when the device is in a factory-default or unconfigured state. Successful exploitation may allow an adjacent, unauthenticated attacker to execute arbitrary commands with elevated privileges, potentially leading to full compromise of the affected device and unauthorized administrative control.
- Affected
- TP-Link Systems Inc. · TP Link Systems Inc. · Archer MR200 v07 · Archer MR200 v8 · Archer MR402 v1 · Archer VR2100 v1 · Archer C20 v5 · Archer C20 v6
- CVSS v4.0 CNA
- 8.7 HIGH
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS
- 0.66% chance of exploitation in the next 30 days, 51st percentile
- Published
- 2026-06-22
- Updated
- 2026-06-26
Proof-of-concept exploits (1)
- mattgsys/CVE-2026-118345★ · 2026-06-24