CVE-2009-3459 Adobe Acrobat and Reader Heap-Based Buffer Overflow
Remote attackers can execute arbitrary code via crafted PDF files due to heap-based buffer overflow in Adobe Reader and Acrobat.
- Exploited in the wild
- Since 20 May 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2009-3459?
CVE-2009-3459 is a high-severity memory corruption vulnerability in Adobe Acrobat, published on 13 Oct 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2009-3459?
It affects 2 products.
Products include Adobe Acrobat, Adobe Acrobat Reader.
How do I fix CVE-2009-3459?
Apply the vendor's patch. US federal agencies must fix it by 3 Jun 2026.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-3459 being exploited?
Yes. Attackers have exploited CVE-2009-3459 in the wild since at least 20 May 2026.
Public exploit code: 2 Metasploit modules and 2 Exploit-DB entries.
Other vulnerabilities in Adobe Acrobat
Sources
Also known as GHSA-q52p-3m33-w676.