F5 Breach and Microsoft Zero-Days Highlight Expanding Enterprise Threat Landscape
Microsoft and F5 faced simultaneous critical incidents: Microsoft patched three actively exploited zero-days (CVE-2025-24990, CVE-2025-59230, CVE-2025-47827) while F5 confirmed source code theft in a supply-chain breach. Source: HelpNetSecurity.
CORTEX Protocol Intelligence Assessment
Business Impact: Nation-state activity exploiting zero-days in enterprise infrastructure software. Technical Context: Multiple vendors affected including F5, Microsoft, Cisco, and Adobe; immediate patching recommended.
Strategic Intelligence Guidance
- Apply emergency patches from Microsoft and F5 immediately.
- Audit supply-chain components for compromise indicators.
- Enforce certificate rotation and privilege audits.
- Monitor for CVE exploitation activity in SIEM telemetry.
CVEs
Vendors
Threats
Targets
Intelligence Source: Week in review: F5 data breach, Microsoft patches three actively exploited zero-days | Oct 20, 2025