CVE-2026-0834: Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13

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

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector

Adjacent

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.4% · higher than 37% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

AC

Archer C20 V5 · TP-Link Systems Inc.

before US_V5_260419; before EU_V5_260317 · source: vendor

AC

Archer C20 v6.0, Archer AX53 v1.0 · TP-Link Systems Inc.

before V6_251031; before V1_251215 · source: vendor

TV

TL-WR841N v13 · TP Link Systems Inc.

before 0.9.1 Build 20231120 Rel.62366 · source: vendor

AA

Archer Ax53 Firmware · Tp-link

1.0 · source: NVD

AC

Archer C20 Firmware · Tp-link

6.0 · source: NVD