Norton Download Manager may insecurely load Dynamic Link Libraries


Norton Download Manager provided by Symantec Japan, Inc. contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.

Takashi Yoshikawa of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

Symantec Corporation
  • Norton Download Manager 5.6 and earlier


Arbitrary code may be executed with the privileges of the user running the application.

[Use the latest Norton Download Manager]
Use the latest Norton Download Manager according to the information provided by the developer.

The developer states the following in the advisory :

* Norton Download Manager is not updated through Liveupdate
* Delete any previously downloaded version of Norton Download Manager
* Download the updated version of Norton Download Manager associated with their Norton security product
Vendor Information

Symantec Corporation
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-6592

  1. JVN : JVN#40667528
  2. National Vulnerability Database (NVD) : CVE-2016-6592
Revision History

  • [2017/02/10]
      Web page was published