CWE
1188
Advisory Published
Updated

CVE-2017-7964

First published: Wed Apr 19 2017(Updated: )

Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for remote attackers to conduct DNS hijacking attacks by reconfiguring the built-in dnshijacker process.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Zyxel Wre6505 Firmware<=v1.00\(aaqb.3\)c0

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Frequently Asked Questions

  • What is the severity of CVE-2017-7964?

    CVE-2017-7964 is classified as a high severity vulnerability due to the default TELNET password exposure.

  • How do I fix CVE-2017-7964?

    To fix CVE-2017-7964, change the default TELNET password from '1234' to a strong, unique password.

  • What devices are affected by CVE-2017-7964?

    CVE-2017-7964 affects Zyxel WRE6505 devices running firmware versions up to v1.00(aaqb.3)c0.

  • What type of attacks can exploit CVE-2017-7964?

    CVE-2017-7964 can be exploited for DNS hijacking attacks by reconfiguring the device's dnshijacker process.

  • How can I determine if my Zyxel device is vulnerable to CVE-2017-7964?

    You can determine if your Zyxel device is vulnerable to CVE-2017-7964 by checking if it uses the default TELNET password and runs the affected firmware version.

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