Security

Pierluigi Paganini April 07, 2026
GPUBreach exploit uses GPU memory bit-flips to achieve full system takeover

GPUBreach attack technique uses GPU memory bit-flips to escalate privileges and potentially take full control of a system. New research shows that attacks like GPUBreach exploit RowHammer bit-flips in GPU memory (GDDR6) to go beyond data corruption. Attackers can use this technique to escalate privileges and, in some cases, gain full control of the system. […]

Pierluigi Paganini April 07, 2026
U.S. CISA adds a flaw in Fortinet FortiClient EMS to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Fortinet FortiClient EMS to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Fortinet FortiClient EMS, tracked as CVE-2026-35616 (CVSS score of 9.1), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Fortinet released out-of-band patches for a […]

Pierluigi Paganini April 07, 2026
Experts published unpatched Windows zero-day BlueHammer

A researcher leaked the unpatched Windows zero-day “BlueHammer,” letting attackers gain SYSTEM rights; no patch exists yet. A disgruntled researcher released the BlueHammer Windows zero-day, a privilege escalation flaw that allows attackers to gain SYSTEM or admin rights, Bleeping Computer reports. The researcher privately reported the vulnerability to Microsoft but criticized the way the Microsoft’s Security […]

Pierluigi Paganini April 06, 2026
BKA unmasks two REvil Ransomware operators behind 130+ German attacks

German police BKA identified two key REvil ransomware members, linking them to over 130 attacks in Germany. Germany’s Federal Criminal Police (BKA) has identified two key figures behind the REvil ransomware group, linking them to more than 130 attacks in the country. The first suspect is Daniil Maksimovich Shchukin (31), a Russian national known online […]

Pierluigi Paganini April 06, 2026
Attackers Exploit RCE Flaw as 14,000 F5 BIG-IP APM Instances Remain Exposed

Over 14,000 F5 BIG-IP APM instances remain exposed online, as attackers actively exploit a critical remote code execution flaw CVE-2025-53521. Over 14,000 F5 BIG-IP APM instances remain exposed online, with attackers actively exploiting the critical remote code execution vulnerability CVE-2025-53521 (CVSS ver. 3.1 score of 9.8), the nonprofit security organization Shadowserver warns. The vulnerability in BIG-IP […]

Pierluigi Paganini April 06, 2026
CVE-2026-35616: Fortinet fixes actively exploited high-severity flaw

Fortinet issued emergency patches for a critical FortiClient EMS flaw (CVE-2026-35616) actively exploited in the wild. Fortinet released out-of-band patches for a critical FortiClient EMS vulnerability, tracked as CVE-2026-35616 (CVSS 9.1), which is already being exploited in attacks in the wild. The flaw is an improper access control issue that allows attackers to bypass authentication […]

Pierluigi Paganini April 05, 2026
Image or Malware? Read until the end and answer in comments :)

A malicious email delivered a .cmd malware that escalates privileges, bypasses antivirus, downloads payloads, sets persistence, and self-deletes. I received this email from a friend to make an analysis. First, let me express my thanks to Janô Falkowski Burkard for this amazing contribution. A little context, He received an email that was really strange and […]

Pierluigi Paganini April 05, 2026
Security Affairs newsletter Round 571 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Qilin ransomware group claims the hack of German political party Die Linke U.S. CISA adds a […]

Pierluigi Paganini April 04, 2026
Qilin ransomware group claims the hack of German political party Die Linke

Qilin ransomware claims it stole data from Germany’s Die Linke and threatens to leak it; the party confirmed the incident, but not a breach. The Qilin ransomware group claims it stole data from Die Linke, a German political party, and is threatening to release it. Die Linke is a left-wing political party in Germany. Its […]

Pierluigi Paganini April 04, 2026
U.S. CISA adds a flaw in TrueConf Client to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in TrueConf Client to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in TrueConf Client, tracked as CVE-2026-3502 (CVSS score of 7.8), to its Known Exploited Vulnerabilities (KEV) catalog. TrueConf is a videoconferencing platform often used in secure, offline […]