7.3
CWE
119 120
Advisory Published
Updated

CVE-2025-28020: Buffer Overflow

First published: Wed Apr 23 2025(Updated: )

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

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Totolink A800R firmware
All of
TOTOLink A800R=4.1.2cu.5137_b20200730
Totolink A800R firmware

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Frequently Asked Questions

  • What is the severity of CVE-2025-28020?

    CVE-2025-28020 has been classified with a high severity due to its buffer overflow vulnerability.

  • How do I fix CVE-2025-28020?

    To fix CVE-2025-28020, update the TOTOLINK A800R firmware to the latest version that addresses this vulnerability.

  • What is the potential impact of CVE-2025-28020?

    The potential impact of CVE-2025-28020 includes remote code execution and denial of service on the affected device.

  • What devices are affected by CVE-2025-28020?

    CVE-2025-28020 affects the TOTOLINK A800R devices running firmware version V4.1.2cu.5137_B20200730.

  • Is CVE-2025-28020 exploitable by remote attackers?

    Yes, CVE-2025-28020 is exploitable by remote attackers without authentication, making it particularly dangerous.

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