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CVE-2023-22915

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CVE-2023-22915

Published: Apr 24, 2023

Modified: Feb 12, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

A buffer overflow vulnerability in the “fbwifi_forward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.30 through 5.35, USG20(W)-VPN firmware versions 4.30 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote unauthenticated attacker to cause DoS conditions by sending a crafted HTTP request if the Facebook WiFi function were enabled on an affected device.

VendorProductVersions

Zyxel

USG FLEX series firmware

affected
4.50 through 5.35

Zyxel

USG FLEX 50(W) firmware

affected
4.30 through 5.35

Zyxel

USG20(W)-VPN firmware

affected
4.30 through 5.35

Zyxel

VPN series firmware

affected
4.30 through 5.35

Weaknesses (CWE)

CWE-120

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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