VU
CRITICAL
Vulnerabilities
Microsoft February 2026 Security Update: Analysis of Six Actively Exploited Zero-Days
Microsoft's latest security release addresses 50+ vulnerabilities, including six zero-day exploits targeting Windows kernel components and browser engines.
Runtime Rebel Intel
2 min read·Feb 23, 2026
HIGH
Vulnerabilities
Automated Reconnaissance Targeting React2Shell Implementations
Analysis of a specialized toolkit currently utilized by threat actors to identify and exploit React2Shell vulnerabilities within enterprise network perimeters.
Runtime Rebel Intel
2 min read·Feb 23, 2026
VU
CRITICAL
Vulnerabilities
Unauthenticated Root RCE in Grandstream IP Phones
A critical vulnerability tracked as CVE-2026-2329 allows unauthenticated remote code execution with root privileges on Grandstream VoIP endpoints.
Runtime Rebel Intel
2 min read·Feb 23, 2026
CY
CRITICAL
Cybersecurity
CISA Catalogs Critical Roundcube Deserialization Vulnerability Under Active Exploitation
CISA has added CVE-2025-49113 to the Known Exploited Vulnerabilities catalog, addressing a critical RCE flaw in Roundcube webmail software resulting from untrusted data deserialization.
Runtime Rebel Intel
2 min read·Feb 23, 2026