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NVD Vulnerability Details :
CVE-2026-0834
Modified
More InfoOfficial Page
Source-f23511db-6c3e-4e32-a477-6aa17d310630
View Known Exploited Vulnerability (KEV) details
Published At-21 Jan, 2026 | 18:16
Updated At-23 Apr, 2026 | 18:16

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.2HIGH
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
Primary3.18.8HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 7.2
Base severity: HIGH
Vector:
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
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches
TP-Link Systems Inc.
tp-link
>>archer_ax53_firmware>>1.0
cpe:2.3:o:tp-link:archer_ax53_firmware:1.0:*:*:*:*:*:*:*
TP-Link Systems Inc.
tp-link
>>archer_ax53>>-
cpe:2.3:h:tp-link:archer_ax53:-:*:*:*:*:*:*:*
TP-Link Systems Inc.
tp-link
>>archer_c20_firmware>>6.0
cpe:2.3:o:tp-link:archer_c20_firmware:6.0:*:*:*:*:*:*:*
TP-Link Systems Inc.
tp-link
>>archer_c20>>-
cpe:2.3:h:tp-link:archer_c20:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-290Secondaryf23511db-6c3e-4e32-a477-6aa17d310630
CWE ID: CWE-290
Type: Secondary
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://mattg.systems/posts/cve-2026-0834/f23511db-6c3e-4e32-a477-6aa17d310630
Permissions Required
https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmwaref23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmwaref23511db-6c3e-4e32-a477-6aa17d310630
N/A
https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmwaref23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmwaref23511db-6c3e-4e32-a477-6aa17d310630
N/A
https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmwaref23511db-6c3e-4e32-a477-6aa17d310630
N/A
https://www.tp-link.com/us/support/faq/4905/f23511db-6c3e-4e32-a477-6aa17d310630
N/A
Hyperlink: https://mattg.systems/posts/cve-2026-0834/
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource:
Permissions Required
Hyperlink: https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource:
Product
Hyperlink: https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource: N/A
Hyperlink: https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource:
Product
Hyperlink: https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource: N/A
Hyperlink: https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource: N/A
Hyperlink: https://www.tp-link.com/us/support/faq/4905/
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Resource: N/A
Change History
0Changes found
Details not found