Latest cybersecurity reporting from selected sources.

Researchers at Nebula Security have disclosed GhostLock (CVE-2026-43499), a 15-year-old Linux kernel flaw that lets any logged-in user take full root control of a machine that has not been patched

Cybersecurity researchers have disclosed details of a new Linux malware dubbed Showboat that has been put to use in a campaign targeting a telecommunications provider in the Middle East since at least mid-2022

Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years

Cybersecurity researchers have disclosed details of a new Linux backdoor named PamDOORa that's being advertised on the Rehub Russian cybercrime forum for $1,600 by a threat actor called "darkworm." The backdoor is designed as a Pluggable Authentication Module (PAM)-based post-exploitation toolkit that enables persistent SSH access by means of a magic password and specific TCP port combination.

Researchers dropped a reliable root exploit and it didn’t sit idle for long CISA is warning that a newly-disclosed Linux kernel bug dubbed "CopyFail" is already being exploited, just days after researchers dropped a working root-level exploit.…

The actively exploited defect could affect every mainstream Linux distribution built since 2017, but some researchers found Theori’s AI-generated disclosure unhelpful and lacking. The post ‘Copy Fail’ is a real Linux security crisis wrapped in AI slop appeared first on CyberScoop.

CISA has warned that threat actors have started exploiting the "Copy Fail" Linux security vulnerability in the wild, one day after Theori researchers disclosed it and shared a proof-of-concept (PoC) exploit. [...]

Cybersecurity researchers have disclosed details of a Linux local privilege escalation (LPE) flaw that could allow an unprivileged local user to obtain root

Cybersecurity researchers have disclosed multiple security vulnerabilities within the Linux kernel's AppArmor module that could be exploited by unprivileged users to circumvent kernel protections, escalate to root, and undermine container isolation guarantees

Cybersecurity researchers have disclosed details of a malicious Go module that's designed to harvest passwords, create persistent access via SSH, and deliver a Linux backdoor named Rekoobe

Cybersecurity researchers have disclosed details of a new botnet operation called SSHStalker that relies on the Internet Relay Chat (IRC) communication protocol for command-and-control (C2) purposes

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

Cybersecurity researchers have disclosed details of a new campaign that exploited a recently disclosed security flaw impacting Cisco IOS Software and IOS XE Software to deploy Linux rootkits on older, unprotected systems

Cybersecurity researchers have disclosed vulnerabilities in select model webcams from Lenovo that could turn them into BadUSB attack devices

Cybersecurity researchers have disclosed two security flaws in the Sudo command-line utility for Linux and Unix-like operating systems that could enable local attackers to escalate their privileges to root on susceptible machines

Two information disclosure flaws have been identified in apport and systemd-coredump, the core dump handlers in Ubuntu, Red Hat Enterprise Linux, and Fedora, according to the Qualys Threat Research Unit (TRU)

Multiple decade-old security vulnerabilities have been disclosed in the needrestart package installed by default in Ubuntu Server (since version 21.04) that could allow a local attacker to gain root privileges without requiring user interaction

Cybersecurity researchers have disclosed what they say is the "first native Spectre v2 exploit" against the Linux kernel on Intel systems that could be exploited to read sensitive data from the memory

Also: A Widespread Linux Bootloader VulnerabilityThis week, the U.S. banned AI robocalls, researchers discovered a Linux bootloader flaw, France investigated health sector hackings, the feds offered money for Hive information, Verizon disclosed an insider breach, Germany opened a cybersecurity center, and cyberattack victims reported high costs.

Cybersecurity researchers have disclosed two high-severity security flaws in the Ubuntu kernel that could pave the way for local privilege escalation attacks