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Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:o:zyxel:usg_flex_100_firmware:5.00:*:*:*:*:*:*:*
  • CPE Name Search: true
There are 25 matching records.
Displaying matches 21 through 25.
Vuln ID Summary CVSS Severity
CVE-2022-26531

Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to cause a buffer overflow or a system crash via a crafted payload.

Published: May 24, 2022; 2:15:09 AM -0400
V4.0:(not available)
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2022-0910

A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.32 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, and VPN series firmware versions 4.32 through 5.21, that could allow an authenticated attacker to bypass the second authentication phase to connect the IPsec VPN server even though the two-factor authentication (2FA) was enabled.

Published: May 23, 2022; 11:15:09 PM -0400
V4.0:(not available)
V3.1: 6.5 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2022-0734

A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.35 through 5.20, and VPN series firmware versions 4.35 through 5.20, that could allow an attacker to obtain some information stored in the user's browser, such as cookies or session tokens, via a malicious script.

Published: May 23, 2022; 11:15:09 PM -0400
V4.0:(not available)
V3.1: 6.1 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2022-0342

An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device.

Published: March 28, 2022; 9:15:07 AM -0400
V4.0:(not available)
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2021-35029

An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device.

Published: July 02, 2021; 7:15:08 AM -0400
V4.0:(not available)
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH