Zyxel Usg Flex 100 Firmware vulnerabilities
30 known vulnerabilities affecting zyxel/usg_flex_100_firmware.
Total CVEs
30
CISA KEV
4
actively exploited
Public exploits
4
Exploited in wild
4
Severity breakdown
CRITICAL6HIGH17MEDIUM7
Vulnerabilities
Page 2 of 2
CVE-2023-27990MEDIUMCVSS 4.8≥ 4.50, < 5.362023-04-24
CVE-2023-27990 [MEDIUM] CWE-79 CVE-2023-27990: The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35
The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker
nvd
CVE-2023-22918MEDIUMCVSS 6.5≥ 4.50, < 5.362023-04-24
CVE-2023-22918 [MEDIUM] CWE-359 CVE-2023-22918: A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firm
A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, VPN series firmware versions 4.30 through 5.35, NWA110AX firmwa
nvd
CVE-2022-38547HIGHCVSS 7.2≥ 4.50, ≤ 5.322023-02-07
CVE-2022-38547 [HIGH] CWE-78 CVE-2022-38547: A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series
A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator pr
nvd
CVE-2022-26532HIGHCVSS 7.8≥ 4.50, ≤ 5.212022-05-24
CVE-2022-26532 [HIGH] CWE-88 CVE-2022-26532: A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firm
A argument injection vulnerability in the 'packet-trace' CLI command 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
nvd
CVE-2022-26531HIGHCVSS 7.8PoC≥ 4.50, ≤ 5.212022-05-24
CVE-2022-26531 [MEDIUM] CWE-20 CVE-2022-26531: Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL se
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, NXC25
nvd
CVE-2022-0910MEDIUMCVSS 6.5≥ 4.50, ≤ 5.212022-05-24
CVE-2022-0910 [MEDIUM] CWE-287 CVE-2022-0910: A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI pro
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 authenticat
nvd
CVE-2022-0734MEDIUMCVSS 6.1≥ 4.50, ≤ 5.202022-05-24
CVE-2022-0734 [MEDIUM] CWE-79 CVE-2022-0734: A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series fi
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
nvd
CVE-2022-0342CRITICALCVSS 9.8PoC≥ 4.50, ≤ 5.202022-03-28
CVE-2022-0342 [CRITICAL] CWE-287 CVE-2022-0342: An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versio
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
nvd
CVE-2021-35029CRITICALCVSS 9.8≥ 4.35, ≤ 5.012021-07-02
CVE-2021-35029 [CRITICAL] CWE-287 CVE-2021-35029: An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall se
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.
nvd
CVE-2020-29583CRITICALCVSS 9.8KEVPoCv4.602020-12-22
CVE-2020-29583 [CRITICAL] CWE-522 CVE-2020-29583: Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchange
Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.
nvd
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