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    CVE-2025-29521

    Insecure default credentials for the Adminsitrator account of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows attackers to escalate privileges via a bruteforce attack.

    Published:Aug 25, 2025
    Last Modified:Sep 2, 2025
    EPS:Aug 25, 2025
    EPSS Score:0.00067
    CVSS Score:5.3

    Affected Products

    Vendor
    Dlink
    Product
    Dsl-7740c
    Vendor
    Dlink
    Product
    Dsl-7740c Firmware

    Exploits

    https://gist.github.com/stevenyu113228/73f06459df5ac3257ff451e382497832

    Common Weakness Enumeration

    CWE-1392 Use of Default Credentials

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-29523 (CVSS 7.2) — D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulner…
    CVE-2025-29519 (CVSS 5.3) — A command injection vulnerability in the EXE parameter of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.202…
    CVE-2025-29514 (CVSS 9.8) — Incorrect access control in the config.xgi function of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.202112…
    CVE-2025-29515 (CVSS 9.8) — Incorrect access control in the DELT_file.xgi endpoint of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.202…
    CVE-2025-29516 (CVSS 7.2) — D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulner…
    CVE-2025-29517 (CVSS 6.8) — D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulner…
    CVE-2025-29520 (CVSS 5.3) — Incorrect access control in the Maintenance module of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.2021123…
    CVE-2025-29522 (CVSS 6.5) — D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulner…
    CVE-2020-12774 (CVSS 8.2) — D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbit…

    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