SRC-2017-0008 : Adobe Reader DC execMenuItem Off-by-One Heap Buffer Overflow Remote Code Execution Vulnerability



CVSS Score:

6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)

Affected Vendors:


Affected Products:

Reader DC

Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Reader DC. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists when calling the execMenuItem function. The issue results from the lack of proper validation of a heap buffer allowing an attacker to trigger an off-by-one heap overflow. On some platforms, an attacker can leverage this vulnerability to execute code under the context of the current process.

Vendor Response:

Adobe has issued an update to correct these vulnerabilities. More details can be found at:

Disclosure Timeline:

  • 2017-03-16 – Verified and acquired by Beyond Security
  • 2017-08-08 – Coordinated public release of advisory


This vulnerability was discovered by Steven Seeley of Source Incite


Source Incite would like to acknowledge Beyond Security’s SSD program for the help with co-ordination of this vulnerability. More details can be found on their blog at