CWE
269
EPSS
0.042%
Advisory Published
Updated

CVE-2023-5650

First published: Tue Nov 28 2023(Updated: )

An improper privilege management vulnerability in the ZySH of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to modify the URL of the registration page in the web GUI of an affected device.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
All of
Zyxel ZLD Firmware>=4.32<=5.37
Any of
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware
Zyxel Zywall ATP200
Zyxel ATP500 Firmware
Zyxel ATP700 Firmware
Zyxel Zywall ATP800 Firmware
All of
Zyxel ZLD Firmware>=4.50<=5.37
Any of
Zyxel USG Flex 100 firmware
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 50w
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX 50(W) series firmware
Zyxel USG FLEX 700 firmware
All of
Zyxel ZLD Firmware>=4.16<=5.37
Any of
Zyxel USG20
Zyxel VPN50
All of
Zyxel ZLD Firmware>=4.30<=5.37
Any of
Zyxel Zywall VPN100
Zyxel VPN1000 Firmware
Zyxel Zywall VPN300
Zyxel VPN50 Firmware

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2023-5650?

    The severity of CVE-2023-5650 is medium with a severity value of 5.5.

  • Which Zyxel products are affected by CVE-2023-5650?

    ZySH of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37 are affected.

  • How can I fix CVE-2023-5650?

    To fix CVE-2023-5650, it is recommended to upgrade to the latest firmware version provided by Zyxel.

  • Where can I find more information about CVE-2023-5650?

    You can find more information about CVE-2023-5650 in the Zyxel security advisory available at https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps.

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2023-5650?

    The Common Weakness Enumeration (CWE) ID for CVE-2023-5650 is 269.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203