Adobe Patches Actively Exploited Acrobat Reader Zero-Day CVE-2026-34621 — Exploited Since December 2025
Adobe has issued an emergency patch for CVE-2026-34621 (CVSS 8.6), a prototype pollution zero-day in Acrobat Reader actively exploited since December 2025. Attackers can achieve code execution by...
Google Patches Actively Exploited Chrome Zero-Day CVE-2026-5281 — Update Now
Google has confirmed that CVE-2026-5281, a high-severity use-after-free vulnerability in Chrome's Dawn WebGPU implementation, is being actively exploited in the wild. CISA has added the flaw to its...
CVE-2026-39987: Critical Marimo Python Notebook RCE Exploited Within 10 Hours of Disclosure
A pre-authentication remote code execution flaw (CVSS 9.3) in the Marimo Python notebook framework was weaponized by attackers within just 10 hours of public disclosure. The vulnerability allows...
Windows Zero-Day “BlueHammer” Exploit Code Released — SYSTEM Privileges at Risk
Exploit code has been publicly released for BlueHammer, a Windows zero-day privilege escalation vulnerability that allows attackers to gain full SYSTEM or administrator access. The availability of working...
Critical Fortinet FortiClient EMS Zero-Day CVE-2026-35616 Actively Exploited — Patch Now
A critical zero-day in Fortinet FortiClient EMS (CVE-2026-35616, CVSS 9.8) is being actively exploited in the wild. CISA has added it to its Known Exploited Vulnerabilities catalog, mandating...
CVSS 10.0: Critical Flowise AI Vulnerability Is Being Actively Exploited — 15,000+ Instances Still Exposed
A maximum-severity RCE vulnerability (CVE-2025-59528, CVSS 10.0) in the popular Flowise AI agent builder is under active attack. Over 15,000 instances are still exposed online. Here’s what you...
Chrome’s Fourth Zero-Day of 2026: CISA Orders Federal Agencies to Patch CVE-2026-5281 by April 15
Google has patched CVE-2026-5281, a use-after-free zero-day in Chrome’s WebGPU engine already exploited in the wild. It’s the fourth Chrome zero-day of 2026. CISA has mandated federal agencies...
Unpatched Adobe Reader Zero-Day Has Been Silently Exploiting Users Since December
A highly sophisticated zero-day exploit targeting Adobe Reader has been active since December 2025, requiring just a single click to open a PDF. No patch is available yet...