Risk Letters

Exploited vulnerability

CVE-2009-3459

TLP:CLEAR

Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability

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.

Facts

  • Vendor: Adobe
  • Product: Acrobat and Reader
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 86.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 20 May 2026
  • First known exploitation: 20 May 2026
  • CISA's deadline for US federal agencies: 3 June 2026
  • Weakness: CWE-119
  • First seen by Risk Letters: 20 May 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD