Vulnerabilities > Zyxel > Critical

DATE CVE VULNERABILITY TITLE RISK
2020-08-06 CVE-2020-13364 Unspecified vulnerability in Zyxel products
A backdoor in certain Zyxel products allows remote TELNET access via a CGI script.
network
low complexity
zyxel
critical
9.0
2020-06-26 CVE-2020-15348 Injection vulnerability in Zyxel Cloud CNM Secumanager 3.1.0/3.1.1
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows use of live/CPEManager/AXCampaignManager/delete_cpes_by_ids?cpe_ids= for eval injection of Python code.
network
low complexity
zyxel CWE-74
critical
10.0
2020-03-04 CVE-2020-9054 OS Command Injection vulnerability in Zyxel products
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device.
network
low complexity
zyxel CWE-78
critical
10.0
2019-11-14 CVE-2019-15800 OS Command Injection vulnerability in Zyxel products
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0.
network
low complexity
zyxel CWE-78
critical
10.0
2019-11-14 CVE-2019-15799 Improper Privilege Management vulnerability in Zyxel products
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0.
network
low complexity
zyxel CWE-269
critical
9.0
2019-05-31 CVE-2019-6725 Use of Hard-coded Credentials vulnerability in Zyxel P-660Hn-T1 Firmware 2.00(Aakk.3)
The rpWLANRedirect.asp ASP page is accessible without authentication on ZyXEL P-660HN-T1 V2 (2.00(AAKK.3)) devices.
network
low complexity
zyxel CWE-798
critical
10.0
2019-05-02 CVE-2017-18374 Use of Hard-coded Credentials vulnerability in multiple products
The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two user accounts with default passwords, including a hardcoded service account with the username true and password true.
network
low complexity
billion zyxel CWE-798
critical
9.0
2019-05-02 CVE-2017-18372 OS Command Injection vulnerability in multiple products
The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has a command injection vulnerability in the Time Setting function, which is only accessible by an authenticated user.
network
low complexity
billion zyxel CWE-78
critical
9.0
2019-05-02 CVE-2017-18370 OS Command Injection vulnerability in multiple products
The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user.
network
low complexity
billion zyxel CWE-78
critical
9.0
2019-05-02 CVE-2017-18368 OS Command Injection vulnerability in multiple products
The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user.
network
low complexity
billion zyxel CWE-78
critical
10.0