Vulnerabilities (CVE)

Filtered by vendor Zyxel Subscribe
Total 303 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-28769 1 Zyxel 2 Dx5401-b0, Dx5401-b0 Firmware 2023-05-08 N/A 9.8 CRITICAL
The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
CVE-2023-22923 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2023-05-06 N/A 6.5 MEDIUM
A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.
CVE-2023-22924 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2023-05-06 N/A 4.9 MEDIUM
A buffer overflow vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to cause denial-of-service (DoS) conditions by executing crafted CLI commands on a vulnerable device.
CVE-2023-22921 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2023-05-06 N/A 7.5 HIGH
A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to store malicious scripts using a web management interface parameter, resulting in denial-of-service (DoS) conditions on an affected device.
CVE-2023-22922 1 Zyxel 2 Nbg-418n, Nbg-418n Firmware 2023-05-06 N/A 7.5 HIGH
A buffer overflow vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote unauthenticated attacker to cause DoS conditions by sending crafted packets if Telnet is enabled on a vulnerable device.
CVE-2023-22919 1 Zyxel 2 Nbg6604, Nbg6604 Firmware 2023-05-06 N/A 8.8 HIGH
The post-authentication command injection vulnerability in the Zyxel NBG6604 firmware version V1.01(ABIR.0)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request.
CVE-2023-22916 1 Zyxel 36 Atp100, Atp100 Firmware, Atp100w and 33 more 2023-05-04 N/A 8.1 HIGH
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 unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.
CVE-2023-22915 1 Zyxel 24 Usg 20w-vpn, Usg 20w-vpn Firmware, Usg Flex 100 and 21 more 2023-05-04 N/A 7.5 HIGH
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.
CVE-2023-22914 1 Zyxel 22 Usg Flex 100, Usg Flex 100 Firmware, Usg Flex 100w and 19 more 2023-05-04 N/A 7.2 HIGH
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 the hotspot function were enabled.
CVE-2023-22917 1 Zyxel 36 Atp100, Atp100 Firmware, Atp100w and 33 more 2023-05-04 N/A 7.5 HIGH
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 remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.
CVE-2023-22913 1 Zyxel 22 Usg Flex 100, Usg Flex 100 Firmware, Usg Flex 100w and 19 more 2023-05-04 N/A 8.1 HIGH
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 affected device.
CVE-2013-6786 6 Allegrosoft, Dlink, Huawei and 3 more 7 Rompager, Dsl-2640r, Dsl-2641r and 4 more 2023-04-26 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in Allegro RomPager before 4.51, as used on the ZyXEL P660HW-D1, Huawei MT882, Sitecom WL-174, TP-LINK TD-8816, and D-Link DSL-2640R and DSL-2641R, when the "forbidden author header" protection mechanism is bypassed, allows remote attackers to inject arbitrary web script or HTML by requesting a nonexistent URI in conjunction with a crafted HTTP Referer header that is not properly handled in a 404 page. NOTE: there is no CVE for a "URL redirection" issue that some sources list separately.
CVE-2023-22920 1 Zyxel 4 Lte3202-m437, Lte3202-m437 Firmware, Lte3316-m604 and 1 more 2023-03-02 N/A 9.8 CRITICAL
A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.
CVE-2022-38547 1 Zyxel 50 Atp100, Atp100 Firmware, Atp100w and 47 more 2023-02-14 N/A 7.2 HIGH
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 privileges to execute OS commands.
CVE-2020-14461 1 Zyxel 2 Wap6806, Wap6806 Firmware 2023-01-27 5.0 MEDIUM 8.6 HIGH
Zyxel Armor X1 WAP6806 1.00(ABAL.6)C0 devices allow Directory Traversal via the images/eaZy/ URI.
CVE-2022-43393 1 Zyxel 90 Gs1350-12hp, Gs1350-12hp Firmware, Gs1350-18hp and 87 more 2023-01-18 N/A 8.2 HIGH
An improper check for unusual or exceptional conditions in the HTTP request processing function of Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, which could allow an unauthenticated attacker to corrupt the contents of the memory and result in a denial-of-service (DoS) condition on a vulnerable device.
CVE-2022-43390 1 Zyxel 78 Ax7501-b0, Ax7501-b0 Firmware, Dx3301-t0 and 75 more 2023-01-18 N/A 8.8 HIGH
A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on a vulnerable device by sending a crafted HTTP request.
CVE-2022-43389 1 Zyxel 34 Ep240p, Ep240p Firmware, Lte3202-m437 and 31 more 2023-01-18 N/A 9.8 CRITICAL
A buffer overflow vulnerability in the library of the web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
CVE-2022-38546 1 Zyxel 2 Nbg7510, Nbg7510 Firmware 2022-12-29 N/A 9.8 CRITICAL
A DNS misconfiguration was found in Zyxel NBG7510 firmware versions prior to V1.00(ABZY.3)C0, which could allow an unauthenticated attacker to access the DNS server when the device is switched to the AP mode.
CVE-2022-30526 1 Zyxel 50 Atp100, Atp100 Firmware, Atp100w and 47 more 2022-12-13 N/A 7.8 HIGH
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 firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.