CVE-2026-0834

Published: Jan 21, 2026Modified: Jun 17, 2026

7.2

Vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/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

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CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/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:XShow less

Source: f23511db-6c3e-4e32-a477-6aa17d310630 (Secondary)

Description

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. 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

Affected (2)

Products: Tp Link: Archer Ax53 Firmware, Archer C20 Firmware

2 products

Archer Ax53 Firmware

Archer C20 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Tp Link Archer Ax53 Firmware	Version 1.0

Running on/with	Platform Versions
Tp Link Archer Ax53	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Tp Link Archer C20 Firmware	Version 6.0

Running on/with	Platform Versions
Tp Link Archer C20	All versions

Related CWEs

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References (7)

https://mattg.systems/posts/cve-2026-0834/

Source: f23511db-6c3e-4e32-a477-6aa17d310630

Permissions Required

https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware

Source: f23511db-6c3e-4e32-a477-6aa17d310630

Product

https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware

Source: f23511db-6c3e-4e32-a477-6aa17d310630

https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware

Source: f23511db-6c3e-4e32-a477-6aa17d310630

Product

https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware

Source: f23511db-6c3e-4e32-a477-6aa17d310630

https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware

Source: f23511db-6c3e-4e32-a477-6aa17d310630

https://www.tp-link.com/us/support/faq/4905/

Source: f23511db-6c3e-4e32-a477-6aa17d310630

Timeline

No history available yet.