Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability

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• NewsExploited · CISA KEVAdobe · Acrobat and Reader

  Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability

  CVE-2009-3459

  Adobe Acrobat and Reader contain a heap-based buffer overflow vulnerability which could allow remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption.

  CISA's required action · due 3 Jun 2026 for U.S. federal civilian agencies

  Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  Cited by CISA: cisa.gov · web.archive.org · nvd.nist.gov

  Added to KEV 20 May 2026 · Source checked 4 Nov 2026, 16:35 UTC · CISA KEV entry

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