Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability

Adobe Acrobat and Reader

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. Added to CISA KEV on 2026-05-20 (federal deadline 2026-06-03).

First seen: 20 May 2026
Last update: 20 May 2026, 12:00 UTC
Identifiers: CVE-2009-3459
Source: CISA KEV

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Adobe Acrobat and Reader
Ids: 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. Added to CISA KEV on 2026-05-20 (federal deadline 2026-06-03).

## Steps
1. Search the repo, its CI and infra config for Adobe Acrobat and Reader. If present, report the version in use and whether it's affected.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2009-3459") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2009-3459 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://www.cisa.gov/news-events/alerts/2009/10/13/adobe-reader-and-acrobat-vulnerabilities
https://pwned.coffee/i/adobe-acrobat-and-reader-heap-based-buffer-overflow-vuln-cve-2009-3459

Sources

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