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    4 vulnerabilities found for AR2140 by Kaon

    CVE-2026-52749 (GCVE-0-2026-52749)

    Vulnerability from nvd – Published: 2026-09-28 13:01 – Updated: 2026-09-28 13:31
    VLAI
    Title
    Improper Authentication in Kaon AR2140X
    Summary
    The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests. This vulnerability allows a remote attacker to obtain a valid session identifier without providing credentials, resulting in an authentication bypass. With this access, the attacker can perform unauthorized actions on upgrade-related functionalities. These actions can be abused to force the router to issue GET requests to arbitrarily chosen domains. This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-28 13:19 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    Impacted products
    Vendor Product Version
    Kaon AR2140 Affected: 0 , ≤ 4.2.17 (semver)
        cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-52748 (GCVE-0-2026-52748)

    Vulnerability from nvd – Published: 2026-09-28 13:01 – Updated: 2026-09-28 13:31
    VLAI
    Title
    Missing authentication for backup functionality in Kaon AR2140X
    Summary
    The Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication. This allows an unauthenticated remote attacker to trigger a configuration backup and retrieve it in a form encrypted by a device-specific key. Triggering this function renders the router inoperable for a substantial period of time.  This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-28 13:19 UTC
    CWE
    • CWE-306 - Missing authentication for critical function
    References
    URL Tags
    https://cert.pl/en/posts/2026/09/CVE-2026-52748 third-party-advisory
    Impacted products
    Vendor Product Version
    Kaon AR2140 Affected: 0 , ≤ 4.2.17 (semver)
        cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2026-07-21 12:00
    Show details on NVD website

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    CVE-2026-52749 (GCVE-0-2026-52749)

    Vulnerability from cvelistv5 – Published: 2026-09-28 13:01 – Updated: 2026-09-28 13:31
    VLAI
    Title
    Improper Authentication in Kaon AR2140X
    Summary
    The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests. This vulnerability allows a remote attacker to obtain a valid session identifier without providing credentials, resulting in an authentication bypass. With this access, the attacker can perform unauthorized actions on upgrade-related functionalities. These actions can be abused to force the router to issue GET requests to arbitrarily chosen domains. This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-28 13:19 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    Impacted products
    Vendor Product Version
    Kaon AR2140 Affected: 0 , ≤ 4.2.17 (semver)
        cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-52748 (GCVE-0-2026-52748)

    Vulnerability from cvelistv5 – Published: 2026-09-28 13:01 – Updated: 2026-09-28 13:31
    VLAI
    Title
    Missing authentication for backup functionality in Kaon AR2140X
    Summary
    The Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication. This allows an unauthenticated remote attacker to trigger a configuration backup and retrieve it in a form encrypted by a device-specific key. Triggering this function renders the router inoperable for a substantial period of time.  This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-28 13:19 UTC
    CWE
    • CWE-306 - Missing authentication for critical function
    References
    URL Tags
    https://cert.pl/en/posts/2026/09/CVE-2026-52748 third-party-advisory
    Impacted products
    Vendor Product Version
    Kaon AR2140 Affected: 0 , ≤ 4.2.17 (semver)
        cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2026-07-21 12:00
    Show details on NVD website

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                  "value": "\u003cp\u003eThe Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication. This allows an unauthenticated remote attacker to trigger a configuration backup and retrieve it in a form encrypted by a device-specific key. Triggering this function renders the router inoperable for a substantial period of time.\u0026nbsp;\u003c/p\u003e\u003cp\u003eThis issue was\u0026nbsp;\u003cspan\u003eidentified in firmware versions up to \u003c/span\u003e\u003cspan\u003e4\u003c/span\u003e\u003cspan\u003e.2.\u003c/span\u003e\u003cspan\u003e17\u003c/span\u003e\u003cspan\u003e. Status of newer versions remains unknown.\u003c/span\u003e\u003c/p\u003e"
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              "url": "https://cert.pl/en/posts/2026/09/CVE-2026-52748"
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          "title": "Missing authentication for backup functionality in Kaon AR2140X",
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