Cyber Threat Report: W/C April 20, 2026

State-Sponsored Phishing Campaign Targets Signal Users

Critical Buffer Overflow Vulnerability in Silex Devices (CVE-2026-32956)

Persistent Firestarter Malware Targets Cisco Firepower Devices in US Agencies

CISA Alerts on Critical Flaws in SimpleHelp, Samsung MagicINFO, and D-Link Devices

New Vulnerabilities Discovered in Serial-to-IP Converters Threaten Critical Infrastructure

Destructive Lotus Wiper Targets Venezuelan Energy Sector Amid Geopolitical Tensions

Phishing Attacks Target German Politicians via Signal App

Critical OS Command Injection Vulnerability in Atlassian Bamboo Disclosed

Tropic Trooper Expands Tactics with Multi-Stage Attacks on Japanese and Taiwanese Targets

Harvester APT Group Unveils New GoGra Linux Backdoor Using Microsoft Graph API

Void Dokkaebi's Malware Campaign Exploits Developer Repositories via Fake Job Interviews

Russian Drone Strike Compromises Chornobyl's Nuclear Safety Amid Ongoing War