Vulnerability in Internet Explorer Could Allow Remote Code Execution

Number: AL14-029
Date: 27 April 2014


The purpose of this Alert is to raise awareness of a vulnerability in Microsoft Internet Explorer (IE) which could allow remote code execution. (2963983)


CCIRC is aware that Microsoft is reporting a vulnerability affecting IE 6 through IE 11. This vulnerability is a remote code execution vulnerability and Microsoft is reporting that it is being used in limited, targeted attacks.

CVE Reference: CVE-2014-1776

Suggested action

CCIRC recommends that organizations review Microsoft Security Advisory 2963983 and consider implementing the suggested workarounds to help mitigate the risks.

Consider installing Microsoft's Experience Mitigation Toolkit 4.1 (EMET). The Enhanced Mitigation Experience Toolkit (EMET) helps mitigate the exploitation of this vulnerability by adding additional protection layers that make the vulnerability harder to exploit.

For more information, see

NOTE: EMET 3.0 does not mitigate this issue.



Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589

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