Patch now! Adobe releases emergency security update for Acrobat Reader

Attackers are exploiting a critical vulnerability in Adobe Acrobat Reader. A security patch for macOS and Windows has now been released.

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1 min. read

To prevent ongoing attacks on Adobe Acrobat Reader, users of the PDF application must install the recently released patched versions. Simply opening manipulated PDF documents is enough for attacks to be successful and for malicious code to get onto computers.

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The security vulnerability has only recently become known, but attackers have already been exploiting it since last December. The extent of the attacks and their targets are currently unclear. Adobe has now released security updates. A warning notice indicates that the vulnerability (CVE-2026-34621) is classified as "critical".

The software developer assures that the macOS and Windows versions Acrobat DC Continuous 26.001.21411, Acrobat Reader DC Continuous 26.001.21411 and Acrobat 2024 Classic 2024 Windows: 24.001.30362 | Mac: 24.001.30360 have been equipped to counter the attacks. According to Adobe, updates install automatically in the default settings.

(des)

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This article was originally published in German. It was translated with technical assistance and editorially reviewed before publication.