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High severity · published Jan 21, 2026
CVE-2026-0834
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…
8.8
CVSS
0.4%
EPSS
No
On KEV
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
AA
Archer Ax53 Firmware · Tp-link
1.0 · source: NVD
AC
Archer C20 Firmware · Tp-link
6.0 · source: NVD
Affected product
AA
Archer Ax53 Firmware
Tp-link
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0834
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0834
Permissions Required
https://mattg.systems/posts/cve-2026-0834/
Product
https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
www.tp-link.com
https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
Product
https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
www.tp-link.com
https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware
www.tp-link.com
https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware
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