Stack-Based Buffer Overflow in Adobe Reader & Acrobat (CVE‑2009‑0927) Threatens Remote Code Execution
What It Is
A stack‑based buffer overflow exists in Adobe Reader and Adobe Acrobat when processing specially crafted PDF files. The flaw allows a remote attacker to overwrite memory and execute arbitrary code on the victim’s system.
Exploitability
Public proof‑of‑concept code was released shortly after the vulnerability’s disclosure, and several exploit kits incorporated it in the wild. While most modern deployments are patched, legacy installations that have not applied the 2009 security update remain vulnerable.
Affected Products
- Adobe Reader (all versions prior to the 9.0.1 patch)
- Adobe Acrobat (all versions prior to the 9.0.1 patch)
Why It Matters for Compliance & Audit Readiness
Unpatched Adobe PDF readers break core vendor‑management and patch‑management controls required by frameworks such as NIST CSF, ISO 27001, and PCI‑DSS. Demonstrating a defensible audit trail hinges on evidence that known high‑severity vulnerabilities are identified, tracked, and remediated in a timely manner. Failure to do so can be cited as a lapse in due‑diligence during a compliance review, especially for controls related to Access Control and System Hardening.
Recommended Actions
- Inventory all endpoints running Adobe Reader/Acrobat and verify version numbers.
- Apply the Adobe security update (or upgrade to a supported version) on any system still running a vulnerable release.
- Enable application whitelisting or PDF‑viewer sandboxing to limit the impact of a successful exploit.
- Monitor for anomalous PDF‑related activity in logs and SIEM alerts (e.g., unexpected child processes or network connections from the PDF reader).
- Document remediation steps in your vulnerability‑management system to provide evidence of control execution for auditors.
Source: https://nvd.nist.gov/vuln/detail/CVE-2009-0927