May 20, 2026 · Applied Cybernetics Group
CVE-2009-3459 — Adobe Acrobat and Reader
Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability
- Added to KEV
2026-05-20- Federal due date
2026-06-03- Vendor
- Adobe
- Product
- Acrobat and Reader
- EPSS
- 99.5th percentile (score 0.881, as of
2026-06-08) - NVD CVSS v3.1
- 8.8 (HIGH)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2009-3459
CISA short description
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.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
NVD description
Heap-based buffer overflow in Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 allows remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption, as exploited in the wild in October 2009. NOTE: some of these details are obtained from third party information.