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    6 vulnerabilities found for Archer C20 v6 by TP-Link Systems Inc.

    CVE-2026-12001 (GCVE-0-2026-12001)

    Vulnerability from nvd – Published: 2026-07-27 20:08 – Updated: 2026-08-11 21:03
    VLAI
    Title
    Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
    Summary
    A hardcoded credential vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 & Archer MR200 v5).  Authentication-related credential material is embedded within a password file in the firmware image and may be recovered through firmware analysis. Successful exploitation could result in unauthorized access to privileged functions on affected devices.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-28 15:09 UTC
    CWE
    • CWE-798 - Use of Hard-coded Credentials
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. TL-WR850N v3 Affected: 0 , < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < Archer C20(US)_V6_250630 (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR845N v4 Affected: 0 , < TL-WR845N(UN)_V4_250401 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer MR200 v5 Affected: 0 , < EU_V5.20_1.3.0 Build 260319 (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR902AC v4 Affected: 0 , < US_V4_0.9.1 Build 260810 (custom)
    Affected: 0 , < EU_V4_0.9.3 Build 260728 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-11834 (GCVE-0-2026-11834)

    Vulnerability from nvd – Published: 2026-06-22 17:53 – Updated: 2026-06-26 21:14
    VLAI
    Title
    Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers
    Summary
    A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized command execution during device initialization or provisioning workflows. This typically occurs when the device is in a factory-default or unconfigured state. Successful exploitation may allow an adjacent, unauthenticated attacker to execute arbitrary commands with elevated privileges, potentially leading to full compromise of the affected device and unauthorized administrative control.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-22 00:00 UTC
    CWE
    • CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. Archer MR200 v07 Affected: 0 , < 1.3.0 Build 250605 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer MR200 v8 Affected: 0 , < 1.5.0 Build 260605 (custom)
    Create a notification for this product.
    TP Link Systems Inc. Archer MR402 v1 Affected: 0 , < 1.5.0 Build 260605 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer VR2100 v1 Affected: 0 , < EU_V1_260330 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v5 Affected: 0 , < EU_V5_260317 (custom)
    Affected: 0 , < US_V5_260419 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < V6_260608 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. TL-MR6400 v7 Affected: 0 , < 1.7.0 Build 260413 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-15551 (GCVE-0-2025-15551)

    Vulnerability from nvd – Published: 2026-02-05 17:22 – Updated: 2026-04-22 21:35
    VLAI
    Title
    LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N
    Summary
    The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-05 20:29 UTC
    CWE
    • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. Archer MR200 v5.2 Affected: 0 , < 1.2.0 Build 250917 Rel.51746 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < 0.9.1 4.19 v0001.0 Build 250630 Rel.56583n (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR850N v3 Affected: 0 , < 3.16.0 0.9.1 v6031.0 Build 251205 Rel.22089n (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR845N v4 Affected: 0 , < 0.9.1 3.19 Build 251031 rel33710 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v5 Affected: 0 , < US_V5_260419 (custom)
    Affected: 0 , < EU_V5_260317 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-12001 (GCVE-0-2026-12001)

    Vulnerability from cvelistv5 – Published: 2026-07-27 20:08 – Updated: 2026-08-11 21:03
    VLAI
    Title
    Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
    Summary
    A hardcoded credential vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 & Archer MR200 v5).  Authentication-related credential material is embedded within a password file in the firmware image and may be recovered through firmware analysis. Successful exploitation could result in unauthorized access to privileged functions on affected devices.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-28 15:09 UTC
    CWE
    • CWE-798 - Use of Hard-coded Credentials
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. TL-WR850N v3 Affected: 0 , < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < Archer C20(US)_V6_250630 (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR845N v4 Affected: 0 , < TL-WR845N(UN)_V4_250401 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer MR200 v5 Affected: 0 , < EU_V5.20_1.3.0 Build 260319 (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR902AC v4 Affected: 0 , < US_V4_0.9.1 Build 260810 (custom)
    Affected: 0 , < EU_V4_0.9.3 Build 260728 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-11834 (GCVE-0-2026-11834)

    Vulnerability from cvelistv5 – Published: 2026-06-22 17:53 – Updated: 2026-06-26 21:14
    VLAI
    Title
    Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers
    Summary
    A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized command execution during device initialization or provisioning workflows. This typically occurs when the device is in a factory-default or unconfigured state. Successful exploitation may allow an adjacent, unauthenticated attacker to execute arbitrary commands with elevated privileges, potentially leading to full compromise of the affected device and unauthorized administrative control.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-22 00:00 UTC
    CWE
    • CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. Archer MR200 v07 Affected: 0 , < 1.3.0 Build 250605 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer MR200 v8 Affected: 0 , < 1.5.0 Build 260605 (custom)
    Create a notification for this product.
    TP Link Systems Inc. Archer MR402 v1 Affected: 0 , < 1.5.0 Build 260605 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer VR2100 v1 Affected: 0 , < EU_V1_260330 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v5 Affected: 0 , < EU_V5_260317 (custom)
    Affected: 0 , < US_V5_260419 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < V6_260608 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. TL-MR6400 v7 Affected: 0 , < 1.7.0 Build 260413 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-15551 (GCVE-0-2025-15551)

    Vulnerability from cvelistv5 – Published: 2026-02-05 17:22 – Updated: 2026-04-22 21:35
    VLAI
    Title
    LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N
    Summary
    The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-05 20:29 UTC
    CWE
    • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
    Impacted products
    Vendor Product Version
    TP-Link Systems Inc. Archer MR200 v5.2 Affected: 0 , < 1.2.0 Build 250917 Rel.51746 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v6 Affected: 0 , < 0.9.1 4.19 v0001.0 Build 250630 Rel.56583n (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR850N v3 Affected: 0 , < 3.16.0 0.9.1 v6031.0 Build 251205 Rel.22089n (custom)
    Create a notification for this product.
    TP Link Systems Inc. TL-WR845N v4 Affected: 0 , < 0.9.1 3.19 Build 251031 rel33710 (custom)
    Create a notification for this product.
    TP-Link Systems Inc. Archer C20 v5 Affected: 0 , < US_V5_260419 (custom)
    Affected: 0 , < EU_V5_260317 (custom)
    Create a notification for this product.
    Show details on NVD website

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