securityweek.com·Apr 9, 2026
Researcher Haifei Li discovered a PDF exploiting an unpatched vulnerability in Adobe Reader, reportedly being used for months.
The discovery of an unpatched Adobe Reader zero-day being exploited highlights the critical need for continuous monitoring and rapid response capabilities in your cybersecurity strategy. Ensuring your threat intelligence feeds are up-to-date and focusing on patch management processes can help mitigate the risks of similar vulnerabilities being exploited in your environment.