high
7.5
CWE
120 119
Advisory Published
Updated

CVE-2023-22917: Buffer Overflow

First published: Mon Apr 24 2023(Updated: )

A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35, which could allow a remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel USG Flex 100 firmware>=5.00<=5.32
Zyxel USG FLEX 100
Zyxel USG FLEX 100w firmware>=5.00<=5.32
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX 200>=5.00<=5.32
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 50(W) series firmware>=5.00<=5.32
Zyxel USG FLEX 50
Zyxel USG FLEX 50w>=5.10<=5.32
Zyxel USG FLEX 50(W) series firmware
Zyxel USG FLEX 500>=5.00<=5.32
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX firmware>=5.00<=5.32
Zyxel USG FLEX 700 firmware
Zyxel VPN100>=5.00<=5.35
Zyxel VPN100 Firmware
Zyxel VPN1000 Firmware>=5.00<=5.35
Zyxel VPN1000 Firmware
Zyxel Zywall VPN 300 Firmware>=5.00<=5.35
Zyxel Zywall VPN300
Zyxel Zywall VPN 50 Firmware>=5.00<=5.35
Zyxel VPN50 Firmware
Zyxel USG 20w-VPN Firmware>=5.10<=5.32
Zyxel USG20
Zyxel ZyWall ATP100 Firmware>=5.10<=5.32
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware>=5.10<=5.32
Zyxel ATP100W Firmware
Zyxel ATP200 firmware>=5.10<=5.32
Zyxel ATP200 firmware
Zyxel ATP500 Firmware>=5.10<=5.32
Zyxel ATP500 Firmware
Zyxel Zywall ATP700 Firmware>=5.10<=5.32
Zyxel ATP700 Firmware
Zyxel ATP800>=5.10<=5.32
Zyxel ATP800 Firmware

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this security issue?

    The vulnerability ID is CVE-2023-22917.

  • What is the severity level of CVE-2023-22917?

    The severity level of CVE-2023-22917 is high (7.5).

  • Which products are affected by CVE-2023-22917?

    The Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35 are affected by CVE-2023-22917.

  • What is the CVE-2023-22917 vulnerability about?

    CVE-2023-22917 is a buffer overflow vulnerability in the 'sdwan_iface_ipc' binary of Zyxel ATP series and other affected firmware versions.

  • Is there a fix available for CVE-2023-22917?

    Yes, Zyxel has released firmware updates to fix the CVE-2023-22917 vulnerability. Please refer to the Zyxel Security Advisory for more information.

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