Hackers Exploiting Microsoft Office 0-day Vulnerability to Deploy Malware
Cybersecurity investigators have identified a new cyberattack campaign connected to the Russia-linked hacking group APT28, also known as UAC-0001. The campaign, named Operation Neusploit, uses a recently discovered Microsoft Office vulnerability called CVE-2026-21509. Security researchers from Zscaler ThreatLabz revealed that the attackers began exploiting the weakness just days after Microsoft publicly disclosed it. The attacks…
