Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tp-Link | Archer Ax53 Firmware | 1.0 |
| Tp-Link | Archer Ax53 | - |
| Tp-Link | Archer C20 Firmware | 6.0 |
| Tp-Link | Archer C20 | - |
Related Weaknesses (CWE)
References
- https://mattg.systems/posts/cve-2026-0834/Permissions Required
- https://www.tp-link.com/en/support/download/archer-ax53/v1/#FirmwareProduct
- https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
- https://www.tp-link.com/en/support/download/archer-c20/v6/#FirmwareProduct
- https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware
- https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware
- https://www.tp-link.com/us/support/faq/4905/
FAQ
What is CVE-2026-0834?
CVE-2026-0834 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2026-0834?
CVE-2026-0834 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0834?
Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Archer Ax53 Firmware, Tp-Link Archer Ax53, Tp-Link Archer C20 Firmware, Tp-Link Archer C20.