Zyxel Vpn100 Firmware vulnerabilities

23 known vulnerabilities affecting zyxel/vpn100_firmware.

Total CVEs
23
CISA KEV
6
actively exploited
Public exploits
7
Exploited in wild
6
Severity breakdown
CRITICAL7HIGH10MEDIUM6

Vulnerabilities

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CVE-2023-33009CRITICALCVSS 9.8KEV≥ 4.60, < 5.36v5.362023-05-24
CVE-2023-33009 [CRITICAL] CWE-120 CVE-2023-33009: A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4 A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.
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CVE-2023-33010CRITICALCVSS 9.8KEV≥ 4.30, < 5.36v5.362023-05-24
CVE-2023-33010 [CRITICAL] CWE-120 CVE-2023-33010: A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.
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CVE-2023-28771CRITICALCVSS 9.8KEVPoC≥ 4.60, < 5.362023-04-25
CVE-2023-28771 [CRITICAL] CWE-78 CVE-2023-28771: Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted
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CVE-2023-22914HIGHCVSS 7.2≥ 4.50, ≤ 5.352023-04-24
CVE-2023-22914 [HIGH] CWE-22 CVE-2023-22914: A path traversal vulnerability in the “account_print.cgi” CGI program of Zyxel USG FLEX series firmw A path traversal vulnerability in the “account_print.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker with administrator privileges to execute unauthorized OS commands in the “tmp” directory by uploading a crafted file if
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CVE-2023-22916HIGHCVSS 8.1≥ 5.00, ≤ 5.352023-04-24
CVE-2023-22916 [HIGH] CWE-20 CVE-2023-22916: The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series fi The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthentic
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CVE-2023-22913HIGHCVSS 8.1≥ 4.50, ≤ 5.352023-04-24
CVE-2023-22913 [HIGH] CWE-77 CVE-2023-22913: A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Z A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data, resulting in denial-of-service (DoS) conditions on an aff
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CVE-2023-22917HIGHCVSS 7.5≥ 5.00, ≤ 5.352023-04-24
CVE-2023-22917 [HIGH] CWE-120 CVE-2023-22917: A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware version 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 remot
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CVE-2023-27991HIGHCVSS 8.8≥ 4.30, < 5.362023-04-24
CVE-2023-27991 [HIGH] CWE-78 CVE-2023-27991: The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmw The post-authentication command injection vulnerability in the CLI command 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, and VPN series firmware versions 4.30 through 5.35, which could all
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CVE-2023-22915HIGHCVSS 7.5≥ 4.50, ≤ 5.352023-04-24
CVE-2023-22915 [HIGH] CWE-120 CVE-2023-22915: A buffer overflow vulnerability in the “fbwifi_forward.cgi” CGI program of Zyxel USG FLEX series fir 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
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CVE-2023-27990MEDIUMCVSS 4.8≥ 4.30, < 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
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CVE-2023-22918MEDIUMCVSS 6.5≥ 4.30, < 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
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CVE-2022-38547HIGHCVSS 7.2≥ 4.30, ≤ 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
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CVE-2022-40603MEDIUMCVSS 6.1≥ 4.30, ≤ 5.312022-12-06
CVE-2022-40603 [MEDIUM] CWE-79 CVE-2022-40603: A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware ve A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware versions 4.30 through 4.72, VPN series firmware versions 4.30 through 5.31, USG FLEX series firmware versions 4.50 through 5.31, and ATP series firmware versions 4.32 through 5.31, which could allow an attacker to trick a user into visiting a crafted URL
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CVE-2022-30526HIGHCVSS 7.8PoC≥ 4.30, ≤ 5.302022-07-19
CVE-2022-30526 [HIGH] CWE-269 CVE-2022-30526: A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firm A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmw
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CVE-2022-2030MEDIUMCVSS 6.5≥ 4.30, ≤ 5.302022-07-19
CVE-2022-2030 [MEDIUM] CWE-22 CVE-2022-2030: A directory traversal vulnerability caused by specific character sequences within an improperly sani A directory traversal vulnerability caused by specific character sequences within an improperly sanitized URL was identified in some CGI programs of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.
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CVE-2022-26532HIGHCVSS 7.8≥ 4.30, ≤ 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
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CVE-2022-26531HIGHCVSS 7.8PoC≥ 4.30, ≤ 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
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CVE-2022-0910MEDIUMCVSS 6.5≥ 4.32, ≤ 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
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CVE-2022-0734MEDIUMCVSS 6.1≥ 4.35, ≤ 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
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CVE-2022-30525CRITICALCVSS 9.8KEVPoC≥ 4.60, < 5.302022-05-12
CVE-2022-30525 [CRITICAL] CWE-78 CVE-2022-30525: A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5 A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21
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