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    CVE-2025-28020

    TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in downloadFile.cgi through the v25 parameter.

    Published:Apr 23, 2025
    Last Modified:May 6, 2025
    EPS:Apr 23, 2025
    EPSS Score:0.00188
    CVSS Score:7.3

    Affected Products

    Vendor
    Totolink
    Product
    A800r
    Vendor
    Totolink
    Product
    A800r Firmware

    Exploits

    https://locrian-lightning-dc7.notion.site/BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d?pvs=73https://locrian-lightning-dc7.notion.site/CVE-2025-28020-BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d

    Related CVEs

    CVE-2026-19847 (CVSS 7.4) — A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setWiFi…
    CVE-2026-19846 (CVSS 7.4) — A vulnerability was identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function setUrlFilte…
    CVE-2026-19845 (CVSS 7.4) — A vulnerability was determined in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function setStaticDh…
    CVE-2026-19844 (CVSS 7.4) — A vulnerability was found in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the function setRa…
    CVE-2026-19815 (CVSS 7.4) — A flaw has been found in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected by this vulnerability is the function…
    CVE-2026-19814 (CVSS 7.4) — A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of t…
    CVE-2026-19813 (CVSS 7.4) — A security vulnerability has been detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function…
    CVE-2026-19812 (CVSS 7.4) — A weakness has been identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function UploadCusto…
    CVE-2026-19811 (CVSS 7.4) — A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the func…
    CVE-2026-6157 (CVSS 7.4) — A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWiz…

    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