HIGHData BreachACTIVE
The Hacker News: Adobe Reader Zero-Day Exploited via Malicious PDFs Since December 2025
April 9, 2026
Incident Summary
Security researcher findings indicate threat actors have been exploiting a zero-day vulnerability in Adobe Reader via malicious PDF documents since December 2025. The incident involves active exploitation, suggesting users who open specially crafted PDFs may be at risk. The raw information does not specify the vulnerability identifier, affected versions, impact (e.g., code execution), or whether Adobe has issued a fix. Limited public details are available beyond the reported exploitation timeframe.
Incident Details
- Type
- Data Breach
- Severity
- HIGH
- Status
- ACTIVE
- Date Occurred
- April 9, 2026
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