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bdu:2026-01009

EUVD-2026-306272

fkie_cve-2026-0834

This issue affects Archer C20 v6.0 < V6_251031, Archer C20 v5 <EU_V5_260317 or < US_V5_260419

Archer AX53 v1.0 <

V1_251215

TL-WR841N v13 < 0.9.1 Build 20231120 Rel.62366

GHSA-cpr3-8r3m-jjf4

Logic vulnerability in TP-Link Archer C20 v6.0 and Archer AX53 v1.0 (TDDP module) allows unauthenticated adjacent attackers to execute administrative commands including factory reset and device reboot without credentials. Attackers on the adjacent network can remotely trigger factory resets and reboots without credentials, causing configuration loss and interruption of device availability.This issue affects Archer C20 v6.0 < V6_251031.

Archer AX53 v1.0 <

V1_251215

VA-26-119-02 — TP-Link WR841N Router multiple vulnerabilities

Logic vulnerability in TP-Link Archer C20 v5, 6.0, Archer AX53 v1.0 and TL-WR841N v13 (TDDP module) allows unauthenticated adjacent attackers to execute administrative commands including factory reset and device reboot without credentials. Attackers on the adjacent network can remotely trigger factory resets and reboots without credentials, causing configuration loss and interruption of device availability. Fixed in Archer C20 V6_251031, Archer C20 EU_V5_260317, Archer C20 US_V5_260419, Archer AX53 V1_251215, TL-WR841N v13 0.9.1 Build 20231120 Rel.62366. TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from default web management credentials, making the key predictable if device is left in default configuration. A network-adjacent attacker can exploit this weakness to gain unauthorized access to the protocol, read debug data, modify certain device configuration values, and trigger device reboot, resulting in loss of integrity and a denial-of-service condition. Fixed in TL-WR841N v13 0.9.1 Build 20231120 Rel.62366.