ZYXEL

Pierluigi Paganini February 27, 2024
Zyxel fixed four bugs in firewalls and access points

Taiwanese vendor Zyxel warns of security vulnerabilities in its firewalls and access points, including a remote code execution flaw. Taiwanese networking vendor Zyxel addressed four vulnerabilities, respectively tracked as CVE-2023-6397, CVE-2023-6398, CVE-2023-6399, and CVE-2023-6764, in its firewalls and access points. The flaws can be exploited by threat actors to carry out command injection and denial-of-service attacks and to […]

Pierluigi Paganini December 04, 2023
Zyxel fixed tens of flaws in Firewalls, Access Points, and NAS devices

Zyxel addressed tens of vulnerabilities that expose users to cyber attacks, including command injection and authentication bypass. Taiwanese vendor Zyxel addressed tens of vulnerabilities in its firewalls and access points. The addressed issues are tracked as CVE-2023-35136, CVE-2023-35139, CVE-2023-37925, CVE-2023-37926, CVE-2023-4397, CVE-2023-4398, CVE-2023-5650, CVE-2023-5797, CVE-2023-5960. Threat actors can exploit the vulnerabilities to steal cookies, access configuration files, carry out command injection and denial-of-service […]

Pierluigi Paganini July 22, 2023
Multiple DDoS botnets were observed targeting Zyxel devices

Researchers warn of several DDoS botnets exploiting a critical flaw tracked as CVE-2023-28771 in Zyxel devices. Fortinet FortiGuard Labs researchers warned of multiple DDoS botnets exploiting a vulnerability impacting multiple Zyxel firewalls. The flaw, tracked as CVE-2023-28771 (CVSS score: 9.8), is a command injection issue that could potentially allow an unauthorized attacker to execute arbitrary […]

Pierluigi Paganini June 20, 2023
Zyxel addressed critical flaw CVE-2023-27992 in NAS Devices

Zyxel released security updates to address a critical vulnerability affecting its network-attached storage (NAS) devices. Zyxel released security updates to address a critical security flaw, tracked as CVE-2023-27992 (CVSS score: 9.8), affecting its network-attached storage (NAS) devices. The vulnerability is a pre-authentication command injection issue that impacts the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware […]

Pierluigi Paganini June 04, 2023
Zyxel published guidance for protecting devices from ongoing attacks

Zyxel has published guidance for protecting firewall and VPN devices from the ongoing attacks recently discovered. Zyxel has published guidance for protecting firewall and VPN devices from ongoing attacks exploiting  CVE-2023-28771, CVE-2023-33009, and CVE-2023-33010 vulnerabilities. “Simultaneously, Zyxel has been urging users to install the patches through multiple channels, including issuing several security advisory newsletters to registered users […]

Pierluigi Paganini June 01, 2023
Widespread exploitation by botnet operators of Zyxel firewall flaw

Threat actors are actively exploiting a command injection flaw, tracked as CVE-2023-28771, in Zyxel firewalls to install malware. Threat actors are actively attempting to exploit a command injection vulnerability, tracked as CVE-2023-28771, that impacts Zyxel firewalls. Their objective is to leverage this vulnerability to deploy and install malware on the affected systems.US CISA added the […]

Pierluigi Paganini May 25, 2023
Zyxel firewall and VPN devices affected by critical flaws

Zyxel fixed two critical flaws in multiple firewall and VPN products that can lead to remote code execution or cause a DoS condition. Zyxel addressed two critical buffer overflow vulnerabilities, tracked as CVE-2023-33009 and CVE-2023-33010, that affect several of its firewall and VPN products. A remote, unauthenticated attacker can can trigger the flaws to cause a denial-of-service (DoS) […]

Pierluigi Paganini May 26, 2022
Zyxel addresses four flaws affecting APs, AP controllers, and firewalls

Zyxel addressed multiple vulnerabilities impacting many of its products, including APs, AP controllers, and firewalls. Zyxel has released security updates to address multiple vulnerabilities affecting multiple products, including firewall, AP, and AP controller products. Below is the list of the four vulnerabilities, the most severe one is a command injection flaw in some CLI commands […]

Pierluigi Paganini May 17, 2022
CISA adds CVE-2022-30525 flaw in Zyxel Firewalls to its Known Exploited Vulnerabilities Catalog

US Critical Infrastructure Security Agency (CISA) adds critical CVE-2022-30525 RCE flaw in Zyxel Firewalls to its Known Exploited Vulnerabilities Catalog. The U.S. Cybersecurity and Infrastructure Security Agency added the recently disclosed remote code execution bug, tracked as CVE-2022-30525, affecting Zyxel firewalls, to its Known Exploited Vulnerabilities Catalog. According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk […]

Pierluigi Paganini May 13, 2022
Zyxel fixed firewall unauthenticated remote command injection issue

Zyxel addressed a critical flaw affecting Zyxel firewall devices that allows unauthenticated, remote attackers to gain arbitrary code execution. Zyxel has moved to address a critical security vulnerability (CVE-2022-30525, CVSS score: 9.8) affecting Zyxel firewall devices that enables unauthenticated and remote attackers to gain arbitrary code execution as the “nobody” user. The issue was discovered […]