---
title: "Security digest: October 8, 2009"
url: https://erroneo.us/security/2009-10-08/
description: "October 8, 2009 vulnerability digest: 1 brief (Adobe Reader CVE-2009-3459: 2009 Heap Overflow…). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2009-10-08
date_modified: 2026-10-23
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: October 8, 2009

1 editorial brief.

## Take stock

- Most can relax: Adobe Reader CVE-2009-3459: 2009 Heap Overflow in KEV . Anyone with Adobe Reader or Acrobat 9.x or older still installed, typically on legacy Windows machines, lab or industrial PCs, or old virtual machine images.
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Editorial briefs

- **Most can relax** [Adobe Reader CVE-2009-3459: 2009 Heap Overflow in KEV](https://erroneo.us/security/briefs/adobe-reader-acrobat-cve-2009-3459-heap-overflow-kev/index.md): A 2009 bug in Reader and Acrobat 7 through 9, product lines Adobe stopped supporting in 2013; anyone on a current Acrobat is unaffected, and any machine that still runs version 9 or older needs that install removed, not patched.

## Known exploited (CISA KEV)

None.

## Critical advisories

None.

---
Source page: https://erroneo.us/security/2009-10-08/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt