Adobe has pushed out an emergency security update for Adobe Acrobat Reader, patching a zero-day vulnerability (CVE-2026-34621) exploited in the wild since November 2025. About CVE-2026-34621 CVE-2026-34621 is a critical prototype pollution vulnerability – a type of vulnerability that occurs in JavaScript and allows attackers to add or modify an application’s JavaScript objects and properties. CVE-2026-34621 can lead to arbitrary code execution in the context of the current user, but it cannot be triggered remotely. … More →
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http://news.poseidon-us.com/TS131Q
