Symantec Endpoint Protection prior to 14 RU1 MP1 or 12.1 RU6 MP10 may be susceptible to a race condition (or race hazard). This type of issue occurs in software where the output is dependent on the sequence or timing of other uncontrollable events.

Symantec Endpoint Protection clients place detected malware in quarantine as part of the intended product functionality. The quarantine logs can be exported for review by the user in a variety of formats including .CSV files. Prior to 14.0 MP1 and 12.1 RU6 MP7, the potential exists for file metadata to be interpreted and evaluated as a formula. Successful exploitation of an attack of this type requires considerable direct user-interaction from the user exporting and then opening the log files on the intended target client.

A version of the SymEvent Driver that shipped with Symantec Endpoint Protection 12.1 RU6 MP6 and earlier fails to properly sanitize logged-in user input. SEP 14.0 and later are not impacted by this issue. A non-admin user would need to be able to save an executable file to disk and then be able to successfully run that file. If properly constructed, the file could access the driver interface and potentially manipulate certain system calls. On all 32-bit systems and in most cases on 64-bit systems, this will result in a denial of service that will crash the system. In very narrow circumstances, and on 64-bit systems only, this could allow the user to run arbitrary code on the local machine with kernel-level privileges. This could result in a non-privileged user gaining privileged access on the local machine.

Sophos Endpoint Protection 10.7 uses an unsalted SHA-1 hash for password storage in %PROGRAMDATA%\Sophos\Sophos Anti-Virus\Config\machine.xml, which makes it easier for attackers to determine a cleartext password, and subsequently choose unsafe malware settings, via rainbow tables or other approaches.

Sophos Endpoint Protection 10.7 allows local users to bypass an intended tamper protection mechanism by deleting the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Sophos Endpoint Defense\ registry key.

A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading to memory corruption, aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability." This affects Windows Defender, Windows Intune Endpoint Protection, Microsoft Security Essentials, Microsoft System Center Endpoint Protection, Microsoft Exchange Server, Microsoft System Center, Microsoft Forefront Endpoint Protection.

Maliciously misconfigured registry vulnerability in all Microsoft Windows products in McAfee consumer and corporate products allows an administrator to inject arbitrary code into a debugged McAfee process via manipulation of registry parameters.

Prior to SEP 14 RU1 Symantec Endpoint Protection product can encounter an issue of Tamper-Protection Bypass, which is a type of attack that bypasses the real time protection for the application that is run on servers and clients.

Prior to SEP 12.1 RU6 MP9 & SEP 14 RU1 Symantec Endpoint Protection Windows endpoint can encounter a situation whereby an attacker could use the product's UI to perform unauthorized file deletes on the resident file system.

Symantec Endpoint Protection prior to SEP 12.1 RU6 MP9 could be susceptible to a privilege escalation vulnerability, which is a type of issue that allows a user to gain elevated access to resources that are normally protected at lower access levels. In the circumstances of this issue, the capability of exploit is limited by the need to perform multiple file and directory writes to the local filesystem and as such, is not feasible in a standard drive-by type attack.