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Backdoor in Zyxel Firewalls and Gateways

Schneier on Security

This is bad : More than 100,000 Zyxel firewalls, VPN gateways, and access point controllers contain a hardcoded admin-level backdoor account that can grant attackers root access to devices via either the SSH interface or the web administration panel. […]. aN_fXp” password.

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Threat actor leaked config files and VPN passwords for over Fortinet Fortigate devices

Security Affairs

A previously unknown threat actor released config files and VPN passwords for Fortinet FortiGate devices on a popular cybercrime forum. A previously unknown threat actor named Belsen Group published configuration files and VPN passwords for over 15,000 Fortinet FortiGate appliances. “2025 will be a fortunate year for the world.

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Zyxel firewalls targeted in recent ransomware attacks

Security Affairs

Zyxel warns that a ransomware group has been observed exploiting a recently patched command injection issue in its firewalls. Zyxel warns that a ransomware gang has been observed exploiting a recently patched command injection vulnerability, tracked as CVE-2024-42057, in its firewalls for initial compromise.

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A new campaign is likely targeting a zero-day in Fortinet FortiGate firewalls

Security Affairs

Experts warn of a new campaign targeting an alleged zero-day in Fortinet FortiGate firewalls with management interfaces exposed online. Arctic Wolf researchers observed a campaign targeting Fortinet FortiGate firewalls with exposed management interfaces, likely exploiting a zero-day vulnerability. ” continues the advisory.

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Attackers exploited SonicWall SMA appliances since January 2025

Security Affairs

Threat actors were spotted exploiting the default super admin account (admin@LocalDomain), which often still uses the weak default password password. Even fully patched devices can be compromised if password hygiene is poor. Arctic Wolf is monitoring the situation and urges organizations to secure all local accounts.

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Cisco warns of password-spraying attacks targeting Secure Firewall devices

Security Affairs

Cisco warns customers of password-spraying attacks that have been targeting Remote Access VPN (RAVPN) services of Cisco Secure Firewall devices. Cisco is warning customers of password-spraying attacks that have been targeting Remote Access VPN (RAVPN) services configured on Cisco Secure Firewall devices.

Firewall 131
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News alert: INE Security shares cyber hygiene guidance for small- and medium-sized businesses

The Last Watchdog

Tip 2: Implementing Strong Password Policies Weak passwords can be easily compromised, giving attackers access to sensitive systems and data. LastPass reports that 80% of all hacking-related breaches leveraged either stolen and/or weak passwords. million.