Zyxel
Zyxel won’t patch newly exploited flaws in end-of-life routers
Zyxel has issued a security advisory about actively exploited flaws in CPE Series devices, warning that it has no plans to issue fixing patches and urging users to move to actively supported models. VulnCheck discovered the two flaws in July 2024, but last week, GreyNoise reported having seen exploitation attempts in the wild. According to network […]
Hackers exploit critical unpatched flaw in Zyxel CPE devices
Hackers are exploiting a critical command injection vulnerability in Zyxel CPE Series devices that is currently tracked as CVE-2024-40891 and remains unpatched since last July. The vulnerability allows unauthenticated attackers to execute arbitrary commands using the ‘supervisor’ or ‘zyuser’ service accounts. Vulnerability intelligence company VulnCheck added the security issue to its database last year on July 12 and […]
Zyxel warns of bad signature update causing firewall boot loops
Zyxel is warning that a bad security signature update is causing critical errors for USG FLEX or ATP Series firewalls, including putting the device into a boot loop. “We’ve found an issue affecting a few devices that may cause reboot loops, ZySH daemon failures, or login access problems,” warns a new Zyxel advisory. “The system LED may also […]
Helldown ransomware exploits Zyxel VPN flaw to breach networks
The new ‘Helldown’ ransomware operation is believed to target vulnerabilities in Zyxel firewalls to breach corporate networks, allowing them to steal data and encrypt devices. French cybersecurity firm Sekoia is reporting this with medium confidence based on recent observations of Helldown attacks. Although not among the major players in the ransomware space, Helldown has quickly grown since […]