CVE-2023-22915

Published: Apr 24, 2023Modified: Nov 21, 2024

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (12)

Products: Zyxel: Usg Flex 100 Firmware, Usg Flex 100w Firmware, Usg Flex 200 Firmware, Usg Flex 50 Firmware, Usg Flex 50w Firmware, Usg Flex 500 Firmware, Usg Flex 700 Firmware, Vpn100 Firmware, Vpn1000 Firmware, Vpn300 Firmware, Vpn50 Firmware, Usg 20w Vpn Firmware

Zyxel

12 products

Usg Flex 100 Firmware

Usg Flex 100w Firmware

Usg Flex 200 Firmware

Usg Flex 50 Firmware

Usg Flex 50w Firmware

Usg Flex 500 Firmware

Usg Flex 700 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 100 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 100	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 100w Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 100w	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 200 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 200	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 50 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 50	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 50w Firmware	From 4.30 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 50w	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 500 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 500	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg Flex 700 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Usg Flex 700	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vpn100 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Vpn100	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vpn1000 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Vpn1000	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vpn300 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Vpn300	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vpn50 Firmware	From 4.50 to 5.35

Running on/with	Platform Versions
Zyxel Vpn50	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Usg 20w Vpn Firmware	From 4.30 to 5.35

Running on/with	Platform Versions
Zyxel Usg 20w Vpn	All versions

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-aps

Source: security@zyxel.com.tw

Vendor Advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-aps

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.