Tried, Tested and Proven

Vulnerability title: Kernel Memory Leak in ESET Multiple Windows Products

CVE: CVE-2014-4974
Vendor: ESET
Product: Multiple Windows Products
Affected version: 5.0 – 7.0
Fixed version: Build 1212
Reported by: Kyriakos Economou


The latest, and earlier versions, of ESET Smart Security and ESET Endpoint Security products for Windows XP OS allow any local user to leak privileged information from kernel memory by exploiting a vulnerability in the ESET Personal Firewall NDIS filter (EpFwNdis.sys) kernel mode driver also known as Personal Firewall module: Build 1183 (20140214) and prior.
The vulnerability is caused by improper validation for some IOCTLs. This issue is addressed in Firewall Module Build 1212 (20140609) by allowing by default only Administrator users to interact with the driver through IOCTLs.


This vulnerability allows an attacker to collect privileged information from Kernel memory


The proof of concept exploit is available.

Vendor status:

25/04/2014 Advisory created
13/05/2014 Vendor contacted
29/05/2014 Vendor working on a fix
12/06/2014 Vendor supplied expected release date for fix
19/06/2014 Vendor supplied a pre-release for testing
27/06/2014 Fix confirmed
17/07/2014 CVE obtained
22/10/2014 Published

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