Microsoft is providing notification of the discovery and remediation of a vulnerability affecting Foxit Reader version 4.0 and earlier. Microsoft discovered and disclosed the vulnerability under coordinated vulnerability disclosure to the affected vendor, Foxit Software. Foxit Software has remediated the vulnerability in their software.
An exploitable vulnerability exists in the way that Foxit Reader handles certain invalid font types. An attacker could exploit this vulnerability by causing the Foxit Reader to exit unexpectedly, allowing the attacker to execute arbitrary code. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Microsoft Vulnerability Research reported this issue to and coordinated with Foxit Software to ensure remediation of this issue. The issue has been assigned the entry, CVE-2011-1908, in the Common Vulnerabilities and Exposures list. For more information, including information about updates from Foxit Software, see Foxit Software Security Bulletins.