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

A critical Adobe Acrobat zero-day has been exploited for months via malicious PDFs to steal data and potentially take over ...

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

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.