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    CVE-2026-31027

    TOTOlink A3600R v5.9c.4959 contains a buffer overflow vulnerability in the setAppEasyWizardConfig interface of /lib/cste_modules/app.so. The vulnerability occurs because the rootSsid parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service.

    Published:Apr 1, 2026
    Last Modified:Apr 8, 2026
    EPS:Apr 1, 2026
    EPSS Score:0.0078
    CVSS Score:9.8

    Affected Products

    Vendor
    Totolink
    Product
    A3600r
    Vendor
    Totolink
    Product
    A3600r Firmware

    Exploits

    https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/rootSsid-setAppEasyWizardConfig.md

    Related CVEs

    CVE-2026-5020 (CVSS 2.1) — A vulnerability was detected in Totolink A3600R 4.1.2cu.5182_B20201102. Affected by this issue is the function…
    CVE-2026-1686 (CVSS 7.4) — A security flaw has been discovered in Totolink A3600R 5.9c.4959. This issue affects the function setAppEasyWi…
    CVE-2024-7187 (CVSS 8.7) — A vulnerability was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. It has been declared as critical. This vu…
    CVE-2024-7186 (CVSS 8.7) — A vulnerability was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. It has been classified as critical. This …
    CVE-2024-7185 (CVSS 8.7) — A vulnerability was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102 and classified as critical. Affected by th…
    CVE-2024-7184 (CVSS 8.7) — A vulnerability has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102 and classified as critical. Affected …
    CVE-2024-7183 (CVSS 8.7) — A vulnerability, which was classified as critical, was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. Affect…
    CVE-2024-7182 (CVSS 8.7) — A vulnerability, which was classified as critical, has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. T…
    CVE-2024-7181 (CVSS 5.3) — A vulnerability classified as critical was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. This vulnerability…
    CVE-2024-7180 (CVSS 8.7) — A vulnerability classified as critical has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. This affects …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High