CVE-2018-5235: Symantec Norton Utilities

Medium severity, CVSS 6.0. EPSS: 0.4% chance of exploitation in the next 30 days.

Norton Utilities (prior to 16.0.3.44) may be susceptible to a DLL Preloading vulnerability, which is a type of issue that can occur when an application looks to call a DLL for execution and an attacker provides a malicious DLL to use instead. Depending on how the application is configured, it will generally follow a specific search path to locate the DLL. The vulnerability can be exploited by a simple file write (or potentially an over-write) which results in a foreign DLL running under the context of the application.

Affected products

• Symantec Norton Utilities: before 16.0.3.44 (fixed in 16.0.3.44)

Published 2018-08-22. Last modified 2026-06-17.