Linux is an open-source operating system used across servers and devices, so kernel, distribution, and software vulnerabilities can affect deployed systems.
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Background for this topic.
Linux is an open-source operating-system kernel: privileged software that manages hardware, memory, processes, filesystems, and networking. Most deployments use it through a distribution that adds user-space tools, package managers, libraries, and an update policy. This distinction matters in security reporting: a kernel flaw, a distribution-package flaw, and a flaw in an application running on Linux may have different affected versions and fixes.
Material attack surfaces include kernel code, loadable modules and device drivers, network services, local privilege boundaries, and third-party packages. Vulnerabilities can enable denial of service, information disclosure, or escalation from an unprivileged account to root, depending on configuration and exploitability. Administrators should track upstream and distribution advisories, apply security updates, and reboot when a running kernel remains vulnerable. Mandatory access-control systems such as SELinux or AppArmor can restrict compromised processes; signed repositories, audit logs, and tested configuration baselines support package integrity and investigation. Open source does not itself guarantee security: exposure depends on code, configuration, maintenance, and the surrounding software stack.
Check Point Research has reported a surge in attacks on a vulnerability in HPE OneView, driven by the Linux-based RondoDox botnet
Cloud-native, 37 plugins … an attacker's dream A brand-new Linux malware named VoidLink targets victims' cloud infrastructure with more than 30 plugins that allow attackers to perform a range of illicit activities, from silent reconnaissance and credential theft to lateral movement and container abuse. …
Researchers discovered a modular, "cloud-first" framework that is feature-rich and designed to maintain stealthy, long-term access to Linux environments.
A newly discovered advanced cloud-native Linux malware framework named VoidLink focuses on cloud environments, providing attackers with custom loaders, implants, rootkits, and plugins designed for modern infrastructures. [...]
Detected by Check Point researchers, VoidLink is a sophisticated malware framework that can be used to implant malware in the most common cloud environments
Cybersecurity researchers have disclosed details of a previously undocumented and feature-rich malware framework codenamed VoidLink that's specifically designed for long-term, stealthy access to Linux-based cloud environments According to a new report from Check Point Research, the cloud-native Linux malware framework comprises an array of custom loaders, implants, rootkits, and modular
Researchers detailed a souped-up version of the GoBruteforcer botnet that preys on servers with weak credentials and AI-generated configurations.
A new wave of GoBruteforcer attacks has targeted databases of cryptocurrency and blockchain projects to co-opt them into a botnet that's capable of brute-forcing user passwords for services such as FTP, MySQL, PostgreSQL, and phpMyAdmin on Linux servers