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    CVE-2025-28026

    TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a buffer overflow vulnerability in downloadFile.cgi.

    Published:Apr 22, 2025
    Last Modified:May 7, 2025
    EPS:Apr 22, 2025
    EPSS Score:0.00188
    CVSS Score:7.3

    Affected Products

    Vendor
    Totolink
    Product
    A3000ru
    Vendor
    Totolink
    Product
    A3000ru Firmware
    Vendor
    Totolink
    Product
    A3100r
    Vendor
    Totolink
    Product
    A3100r Firmware
    Vendor
    Totolink
    Product
    A830r
    Vendor
    Totolink
    Product
    A830r Firmware
    Vendor
    Totolink
    Product
    A950rg
    Vendor
    Totolink
    Product
    A950rg Firmware

    Exploits

    https://locrian-lightning-dc7.notion.site/BufferOverflow3-19e8e5e2b1a28048b8ddd4afdbe18d55https://locrian-lightning-dc7.notion.site/CVE-2025-28026-BufferOverflow3-19e8e5e2b1a28048b8ddd4afdbe18d55

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-15271 (CVSS 7.7) — A security vulnerability has been detected in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185R_T10 a…
    CVE-2025-4496 (CVSS 8.7) — A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210…
    CVE-2025-28028 (CVSS 7.3) — TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A310…
    CVE-2025-28025 (CVSS 7.3) — TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A310…
    CVE-2025-28032 (CVSS 7.3) — TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V…
    CVE-2025-28029 (CVSS 7.3) — TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A310…
    CVE-2025-28035 (CVSS 9.8) — TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability …
    CVE-2025-28027 (CVSS 7.3) — TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A310…
    CVE-2025-28033 (CVSS 7.3) — TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V…
    CVE-2025-28034 (CVSS 9.8) — TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V…

    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