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Zyxel 0day Affects its Firewall Products, Too

Krebs on Security

Today, Zyxel acknowledged the same flaw is present in many of its firewall products. “We’ve now completed the investigation of all Zyxel products and found that firewall products running specific firmware versions are also vulnerable,” Zyxel wrote in an email to KrebsOnSecurity. Patch 0 through ZLD V4.35

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SonicWall warns of an exploitable SonicOS vulnerability

Security Affairs

SonicWall warns customers to address an authentication bypass vulnerability in its firewall’s SonicOS that is “susceptible to actual exploitation.” The same firmware upgrade contains mitigations for additional, less-critical vulnerabilities.” hardware firewalls: SonicOS 6.5.5.1-6n

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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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Chinese national charged for hacking thousands of Sophos firewalls

Security Affairs

has charged a Chinese national for hacking thousands of Sophos firewall devices worldwide in 2020. has charged the Chinese national Guan Tianfeng (aka gbigmao and gxiaomao) for hacking thousands of Sophos firewall devices worldwide in 2020. It was designed to download payloads intended to exfiltrate XG Firewall-resident data.

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U.S. CISA adds SonicWall SonicOS and Palo Alto PAN-OS flaws to its Known Exploited Vulnerabilities catalog

Security Affairs

The two vulnerabilities are: CVE-2025-0108 Palo Alto PAN-OS Authentication Bypass Vulnerability CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication Vulnerability Researchers recently warned that threat actors exploit a recently disclosed vulnerability, CVE-2025-0108, in Palo Alto Networks PAN-OS firewalls.

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Unsigned Firmware running on peripherals could expose Windows, Linux systems to hack

Security Affairs

Peripheral devices with unsigned firmware can expose Windows and Linux machines to hack, warn experts from firmware security firm Eclypsium. An attacker could exploit the lack of checks to execute malicious firmware and perform malicious actions on both Windows and Linux systems, such as the installation of persistent backdoors.

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Zyxel warns customers of attacks on its enterprise firewall and VPN devices

Security Affairs

Networking equipment giant Zyxel warns customers of a series of attacks that have been targeting some of its enterprise firewall and VPN devices. Networking equipment vendor Zyxel warned its customers of a series of attacks that have been targeting some of its enterprise firewall and VPN server solutions. Pierluigi Paganini.

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