Category: Vulnerabilities & Alerts

CISA Vulnerability Summary – Week of July 21, 2025

Summary: I analyzed the Vulnerability Summary for the Week of July 21, 2025 published by CISA. This bulletin lists 176 new vulnerabilities discovered that week. In this article, I present all these vulnerabilities in a factual and structured manner, organized by affected product or vendor. For each product, you’ll find the CVE identifier, CVSS severity…

Cyberattacks by Group UAC-0001 (APT28) Targeting Government Institutions – BEARDSHELL and COVENANT

This article presents an analysis by CERT-UA (the Ukrainian national CERT) of activities linked to APT28. Between March and April 2024, a sophisticated multi-stage cyberoperation targeted Ukrainian government agencies (central executive authorities). The attack is attributed to threat actor UAC-0001, also known internationally as APT28 or Fancy Bear, known for advanced espionage campaigns. Discovery of…