Published: March 20, 2026 | ByteVanguard Key Takeaways Browser vulnerabilities remain high-value initial-access vectors. Chrome sits directly in front of users, identity workflows, SaaS platforms, and enterprise data, [...]

The Threat at a Glance Threat Type Actively Exploited Zero-Day Vulnerabilities in Windows and Microsoft Products (Security Feature Bypasses & Elevation of Privilege) Severity Critical (CVSS 7.5–8.8; 6 [...]

Cisco has disclosed a maximum-severity zero-day vulnerability (CVE-2025-20393, CVSS 10.0) in AsyncOS software for Secure Email Gateway and Secure Email and Web Manager appliances. A China-nexus APT group [...]

Microsoft released its December 2025 Patch Tuesday updates, addressing 57 security vulnerabilities across Windows, Office, and other products. One zero-day flaw (CVE-2025-62221) is being actively exploited in the [...]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a critical zero-day vulnerability in Google Chromium to its Known Exploited Vulnerabilities (KEV) Catalog on December 12, 2025. This [...]