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CVE-2009-3459

8.8
HIGHCVSS v3.1 Base Score
88.07%
HIGH RiskEPSS (100th percentile)
KEV

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.

Published: 10/13/2009
Modified: 5/21/2026
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability

Vendor / Product:

Adobe Acrobat and Reader

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.

Due Date: 6/3/2026(URGENT)
Added to KEV:

5/20/2026

Notes:

https://www.cisa.gov/news-events/alerts/2009/10/13/adobe-reader-and-acrobat-vulnerabilities ; https://web.archive.org/web/20120324170253/http://www.adobe.com/support/security/bulletins/apsb09-15.html#:~:text=CVE%2D2009%2D3459).-,NOTE%3A,-There%20are%20reports ; https://nvd.nist.gov/vuln/detail/CVE-2009-3459

Vulnerability Summary

CVSS v3 Score

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2 Score

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

88.07%HIGH Exploitation Risk
100th percentile

This vulnerability has a 88.07% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.

CWE Classification

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