Hackers have been exploiting an Adobe Reader zero-day vulnerability since December 2025; PDF users are warned.

Adobe has released an emergency security update for Acrobat Reader to fix a vulnerability, tracked as CVE-2026-34621, that ...

A critical security vulnerability in Adobe Reader is being actively exploited by cybercriminals through a sophisticated and evolving ...

Adobe patches a critical PDF flaw exploited for months, allowing attackers to bypass sandbox protections and deliver malware.

Adobe Reader zero-day exploited since Dec 2025 via malicious PDFs, enabling data theft and potential RCE, prompting urgent ...

Adobe has released a fix for an Acrobat and Reader zero-day that attackers had been exploiting for months. The patch, shipped on April 11, addresses CVE-2026-34621, a critical vulnerability in Acrobat ...

Hackers have been quietly exploiting what appears to be a zero-day in Adobe Acrobat Reader for months, using booby-trapped PDFs to profile targets and decide who's worth fully compromising.

Researcher Haifei Li, founder of the exploit detection platform EXPMON, discovered a sophisticated attack that uses PDF files to spy on and potentially ...

Now a security researcher says a Reader hole has been quietly exploited by malware for as long as four months, fingerprinting ...

Adobe patches Acrobat Reader zero‑day exploited since Dec 2025 CVE‑2026‑34621 enabled RCE via malicious PDFs Users must ...

Adobe patches CVE-2026-34621 after active exploitation since Dec 2025, preventing remote code execution via malicious PDFs.