important · Wi-Fi — Router
A LAN peer can crash an Archer AX55 v4 EasyMesh daemon through a stack overflow.
Affects
TP-Link Archer AX55 V4, a consumer Wi-Fi router running embedded firmware.
With Mesh mode enabled, crafted LAN input reaches a stack overflow and crashes the easymesh daemon.
Detail and 2 sources
The vendor describes code execution as possible, but the held evidence does not establish controlled execution.
Chain to watch
Reach an Archer AX55 v4 over its LAN with Mesh mode enabled→↓Send crafted EasyMesh input→↓Overflow and crash the easymesh daemon→↓Controlled instruction flow and the daemon's execution privilege remain unestablished.
Unverified chainReproduce the crash on pre-fix stock firmware and inspect the faulting state and daemon identity.
Firmware 1.2.1 Build 20260527 fixes the overflow.