7.8
CWE
119
Advisory Published
Updated

CVE-2018-18731: Buffer Overflow

First published: Sun Oct 28 2018(Updated: )

An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the 'deviceMac' parameter for a post request, the value is directly used in a sprintf to a local variable placed on the stack, which overrides the return address of the function.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Tenda Ac7 Firmware=15.03.06.44_cn
Tenda AC7
Tenda Ac9 Firmware=15.03.05.19\(6318\)_cn
Tenda AC9
Tenda Ac10 Firmware=15.03.06.23_cn
Tenda AC10
Tenda ac15 firmware=15.03.05.19_cn
Tenda AC15
Tenda Ac18 Firmware=15.03.05.19\(6318\)_cn
Tenda AC18

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Frequently Asked Questions

  • What is CVE-2018-18731?

    CVE-2018-18731 is a buffer overflow vulnerability discovered on Tenda AC7, AC9, AC10, AC15, and AC18 devices.

  • Is Tenda AC7 affected by CVE-2018-18731?

    No, Tenda AC7 is not affected by CVE-2018-18731.

  • Is Tenda AC9 affected by CVE-2018-18731?

    Yes, Tenda AC9 is affected by CVE-2018-18731.

  • How severe is CVE-2018-18731?

    CVE-2018-18731 has a severity rating of 7.5 (high).

  • How can I fix CVE-2018-18731?

    To fix CVE-2018-18731, it is recommended to update the firmware of the affected Tenda devices to the latest version available.

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