CVE-2026-34621: Adobe Acrobat Reader Zero-Day Enables Arbitrary Code Execution via Crafted PDF
ID: df4bea54-7da9-54ea-b331-0dd18196d940
STIX ID: report--df4bea54-7da9-54ea-b331-0dd18196d940
Feed Name: SOCRadar Blog
Threat Score
**Adobe released an emergency update for CVE-2026-34621, a prototype-pollution flaw in Acrobat/Reader that allows arbitrary code execution when a user opens a crafted PDF; Adobe confirmed it is being exploited in the wild and SOCRadar observed a possible PoC on a dark web forum, so organizations should prioritize patching, restrict handling of untrusted PDFs, and hunt for suspicious Acrobat JavaScript activity.**
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