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    CVE-2020-29557

    An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.

    Published:Jan 29, 2021
    Last Modified:Nov 7, 2025
    EPS:Jan 29, 2021
    EPSS Score:0.91021
    CVSS Score:9.8

    CISA Notification

    Description

    An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    May 3, 2022
    1592 days ago
    Alert Date
    Nov 3, 2021
    1773 days ago

    Affected Products

    Vendor
    Dlink
    Product
    Dir-825
    Vendor
    Dlink
    Product
    Dir-825\/a
    Vendor
    Dlink
    Product
    Dir-825\/ac
    Vendor
    Dlink
    Product
    Dir-825\/acf
    Vendor
    Dlink
    Product
    Dir-825\/gf
    Vendor
    Dlink
    Product
    Dir-825 R1 Firmware

    Exploits

    https://shaqed.github.io/dlink/https://shaqed.github.io/dlink/

    Related CVEs

    CVE-2026-7069 (CVSS 7.3) — A security flaw has been discovered in D-Link DIR-825 up to 3.00b32. This impacts the function AddPortMapping …
    CVE-2026-7068 (CVSS 7.4) — A vulnerability was identified in D-Link DIR-825 3.00b32. This affects the function NMBD_process of the file s…
    CVE-2025-10666 (CVSS 7.4) — A security flaw has been discovered in D-Link DIR-825 up to 2.10. Affected by this vulnerability is the functi…
    CVE-2025-10034 (CVSS 7.4) — A vulnerability was found in D-Link DIR-825 1.08.01. This impacts the function get_ping6_app_stat of the file …
    CVE-2025-8949 (CVSS 7.3) — A vulnerability was identified in D-Link DIR-825 2.10. Affected by this vulnerability is the function get_ping…
    CVE-2025-7206 (CVSS 8.9) — A vulnerability, which was classified as critical, has been found in D-Link DIR-825 2.10. This issue affects t…
    CVE-2025-6292 (CVSS 7.4) — A vulnerability has been found in D-Link DIR-825 2.03 and classified as critical. This vulnerability affects t…
    CVE-2025-6291 (CVSS 7.4) — A vulnerability, which was classified as critical, was found in D-Link DIR-825 2.03. This affects the function…
    CVE-2024-57595 (CVSS 9.8) — DLINK DIR-825 REVB 2.03 devices have an OS command injection vulnerability in the CGl interface apc_client_pin…
    CVE-2024-0717 (CVSS 5.3) — A vulnerability classified as critical was found in D-Link DAP-1360, DIR-300, DIR-615, DIR-615GF, DIR-615S, DI…

    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