Advertisement
CRITICAL
Threat Intel
APT28 Exploits CVE-2026-21513: MSHTML 0-Day Intelligence
Akamai reports Russia-linked APT28 exploited CVE-2026-21513 in the MSHTML Framework as a zero-day before Microsoft's February 2026 security patch updates.
Runtime Rebel Intel
3 min read·Mar 2, 2026
CRITICAL
Vulnerabilities
January 2026 CVE Landscape: APT28 Zero-Day & Critical Flaws
Runtime Rebel details January 2026's 23 critical CVEs, including an APT28 zero-day in Microsoft Office and critical enterprise authentication bypass vulnerabilities.
Runtime Rebel Intel
5 min read·Feb 25, 2026
HIGH
Threat Intel
APT28 Operation MacroMaze: Webhook-Driven Macro Execution Targeting Western Europe
Analysis of a targeted campaign attributed to APT28, utilizing macro-enabled documents and legitimate webhook services for command-and-control obfuscation.
Runtime Rebel Intel
2 min read·Feb 24, 2026