Adobe Acrobat Reader Zero-Day CVE-2026-34621 Actively Exploited — The Hacker News

Adobe has released emergency patches for a critical zero-day vulnerability, CVE-2026-34621, in Acrobat Reader. This flaw is being actively exploited in the wild, posing a significant risk to users. The vulnerability allows for remote code execution, potentially enabling attackers to take full control of affected systems. Security teams should prioritize patching to mitigate this threat and ensure systems are updated to the latest version.

Active Exploitation of Marimo Pre-Auth RCE Vulnerability — BleepingComputer

A critical pre-authentication remote code execution vulnerability in Marimo is currently under active exploitation. This flaw allows attackers to execute arbitrary code on vulnerable systems without prior authentication, posing a severe threat. Organizations using Marimo should apply available patches immediately and review network logs for signs of compromise to prevent unauthorized access and potential data breaches.

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