CVE-2026-0834
TP-Link · published 2026-01-21
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by TPLink via the CVE Program.
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
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | Archer C20 v6.0, Archer AX53 v1.0 | 0 – before V6_251031: affected 0 – before V1_251215: affected |
| TP-Link Systems Inc. | Archer C20 V5 | 0 – before US_V5_260419: affected 0 – before EU_V5_260317: affected |
| TP Link Systems Inc. | TL-WR841N v13 | 0 – before 0.9.1 Build 20231120 Rel.62366: affected |
Products named in NVD's CPE match criteria (2)
cpe:2.3:o:tp-link:archer_ax53_firmware:1.0:*:*:*:*:*:*:*cpe:2.3:o:tp-link:archer_c20_firmware:6.0:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 4.0: 7.2 HIGH — as published by TPLink (Secondary)
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 - CVSS 3.1: 8.8 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: poc · Automatable: no · Technical impact: total
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://mattg.systems/posts/cve-2026-0834/
- https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
- https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
- https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
- 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/
Source dates: published 2026-01-21, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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