Sergiu Gatlan / BleepingComputer:

Researchers: a zero-day vulnerability in Adobe Reader has been actively exploited since at least December 2025, and some docs contain Russian-language lures  —  Attackers have been exploiting a zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December.

Sergiu Gatlan / BleepingComputer:

Researchers: a zero-day vulnerability in Adobe Reader has been actively exploited since at least December 2025, and some docs contain Russian-language lures  —  Attackers have been exploiting a zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December.

Source: TechMeme
Source Link: http://www.techmeme.com/260409/p18#a260409p18