Linux Archives - We Fix PC

Microsoft Exchange, Windows 11 hacked on second day of Pwn2Own

During the second day of Pwn2Own Berlin 2026, competitors collected $385,750 in cash awards after exploiting 15 unique zero-day vulnerabilities in multiple products, including Windows 11, Microsoft Exchange, and Red Hat Enterprise Linux for Workstations. The Pwn2Own Berlin 2026 hacking competition takes place at the OffensiveCon conference from May 14 to May 16 and focuses […]

14 May

Windows 11 and Microsoft Edge hacked at Pwn2Own Berlin 2026

On the first day of Pwn2Own Berlin 2026, security researchers collected $523,000 in cash awards after exploiting 24 unique zero-days. Today’s highlight was Orange Tsai’s attempt, who was awarded $175,000 in rewards after chaining 4 logic bugs to achieve a sandbox escape on Microsoft Edge. Windows 11 was also hacked three times by Angelboy and TwinkleStar03 (working with the DEVCORE Internship […]

13 May

New critical Exim mailer flaw allows remote code execution

A critical vulnerability affecting certain configurations of the Exim open-source mail transfer agent could be exploited by an unauthenticated remote attacker to execute arbitrary code. Identified as CVE-2026-45185, the security issue impacts some Exim versions before 4.99.3 that use the default GNU Transport Layer Security (GnuTLS) library for secure communication. It is a user-after-free (UAF) flaw triggered during the […]

08 May

New Linux ‘Dirty Frag’ zero-day gives root on all major distros

A new Linux zero-day exploit, named Dirty Frag, allows local attackers to gain root privileges on most major Linux distributions with a single command. Security researcher Hyunwoo Kim, who disclosed it earlier today and published a proof-of-concept (PoC) exploit, says this local privilege escalation was introduced roughly nine years ago in the Linux kernel’s algif_aead […]

05 May

New stealthy Quasar Linux malware targets software developers

A previously undocumented Linux implant named Quasar Linux (QLNX) is targeting developers’ systems with a mix of rootkit, backdoor, and credential-stealing capabilities. The malware kit is deployed in development and DevOps environments in npm, PyPI, GitHub, AWS, Docker, and Kubernetes. This could enable supply-chain attacks where the threat actor publishes malicious packages on code distribution […]

24 Apr

New ‘Pack2TheRoot’ flaw gives hackers root Linux access

A new vulnerability dubbed Pack2TheRoot could be exploited in the PackageKit daemon to allow local Linux users to install or remove system packages and gain root permissions. The flaw is identified as CVE-2026-41651 and received a high-severity rating of 8.8 out of 10. It has persisted for almost 12 years in the PackageKit daemon, a background service that manages […]

14 Oct

New FASTCash malware Linux variant helps steal money from ATMs

North Korean hackers are using a new Linux variant of the FASTCash malware to infect the payment switch systems of financial institutions and perform unauthorized cash withdrawals. Previous variants of FASTCash targeted Windows and IBM AIX (Unix) systems, but a new report by security researcher HaxRob reveals a previously undetected Linux version that targets Ubuntu […]

03 Oct

Linux malware “perfctl” behind years-long cryptomining campaign

A Linux malware named “perfctl” has been targeting Linux servers and workstations for at least three years, remaining largely undetected through high levels of evasion and the use of rootkits. According to Aqua Nautilus researchers who discovered perfctl, the malware likely targeted millions of Linux servers in recent years and possibly caused infections in several […]

26 Sep

CUPS flaws enable Linux remote code execution, but there’s a catch

Under certain conditions, attackers can chain a set of vulnerabilities in multiple components of the CUPS open-source printing system to execute arbitrary code remotely on vulnerable machines. Tracked as CVE-2024-47076 (libcupsfilters), CVE-2024-47175 (libppd), CVE-2024-47176 (cups-browsed) and CVE-2024-47177 (cups-filters) and discovered by Simone Margaritelli, these security flaws don’t affect systems in their default configuration. CUPS (short […]

23 Sep

New Mallox ransomware Linux variant based on leaked Kryptina code

An affiliate of the Mallox ransomware operation, also known as TargetCompany, was spotted using a slightly modified version of the Kryptina ransomware to attack Linux systems. This version, according to SentinelLabs, is separate from other Linux-targeting variants of Mallox, such as the one described last June by Trend Micro researchers, highlighting the shifting tactics of the […]

Tag: Linux