CVE-2026-0834HIGH 8.8EPSS p31.8%

CVE-2026-0834CVE-2026-0834

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

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.40% probability of exploitation · percentile 31.8% · 2026-06-19T12:03:05Z
Published2026-01-21
Last modified2026-04-28

Underlying weaknesses· 1

CWE-290

References

  1. https://mattg.systems/posts/cve-2026-0834/
  2. https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
  3. https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
  4. https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
  5. https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware
  6. https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware
  7. https://www.tp-link.com/us/support/faq/4905/

1

TypeTargetConfidenceTier
WeaknessAuthentication Bypass by Spoofingcwe-2900%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability
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CVE-2026-30818
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TP-Link Archer AX-21 Command Injection Vulnerability
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CVE-2026-5039
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CVE-2026-30815
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.