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CVE-2026-0834

Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in V6_251031, V1_251215, US_V5_260419, EU_V5_260317, 0.9.1 Build 20231120 Rel.62366
1 proof of concept on GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

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

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

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

    fixed in V6_251031; fixed in V1_251215

  • TP-Link Systems Inc. Archer C20 V5

    fixed in US_V5_260419; fixed in EU_V5_260317

  • TP Link Systems Inc. TL-WR841N v13

    fixed in 0.9.1 Build 20231120 Rel.62366

References 8

tp-link.com

mattg.systems

GitHub · mattgsys/CVE-2026-0834