Symantec Endpoint Protection up to 12.1.6 MP4 RAR Archive Access Violation input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Symantec Endpoint Protection up to 12.1.6 MP4 (Anti-Malware Software). It has been rated as critical. This issue affects an unknown functionality of the component RAR Archive Handler. The manipulation with an unknown input leads to a input validation vulnerability (Access Violation). Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability.

The bug was discovered 06/28/2016. The weakness was disclosed 06/28/2016 by Tavis Ormandy with Google as SYM16-010 as confirmed advisory (Website). The advisory is shared at The identification of this vulnerability is CVE-2016-2207 since 02/02/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. The exploit is available at We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 91895 (Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP5 Multiple Vulnerabilities (SYM16-010)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370074 (Symantec Multiple Products Decomposer Engine Multiple File Parsing Vulnerabilities (SYM16-010)).

Applying the patch 12.1 RU6 MP5 is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityTracker (ID 1036198), Tenable (91895) and Exploit-DB (40031). The entries 88398, 88399, 88400 and 88401 are pretty similar.


  • Symantec Advanced Threat Protection
  • Symantec Critical System Protection
  • Symantec CSAPI
  • Symantec Data Center Server
  • Symantec Email Security Server .Cloud
  • Symantec Embedded Systems Critical System Protection
  • Symantec Endpoint Protection
  • Symantec Endpoint Protection for Linux
  • Symantec Endpoint Protection for Mac
  • Symantec Mail Security for Domino
  • Symantec Mail Security for Microsoft Exchange
  • Symantec Message Gateway
  • Symantec Message Gateway for Service Providers
  • Symantec Norton 360
  • Symantec Norton AntiVirus
  • Symantec Norton Security
  • Symantec Protection Engine
  • Symantec Protection for SharePoint Servers
  • Symantec Web Gateway
  • Symantec Web Security .Cloud






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.4
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Name: Access Violation
Class: Input validation / Access Violation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 91895
Nessus Name: Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP5 Multiple Vulnerabilities (SYM16-010)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900306
OpenVAS Name: Symantec Messaging Gateway Decomposer Engine Multiple Parsing Vulnerabilities)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 12.1 RU6 MP5


02/02/2016 🔍
06/28/2016 +147 days 🔍
06/28/2016 +0 days 🔍
06/28/2016 +0 days 🔍
06/28/2016 +0 days 🔍
06/29/2016 +1 days 🔍
06/30/2016 +1 days 🔍
06/30/2016 +0 days 🔍
06/30/2016 +0 days 🔍
08/25/2022 +2247 days 🔍



Advisory: SYM16-010
Researcher: Tavis Ormandy
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2207 (🔍)

SecurityTracker: 1036198
SecurityFocus: 91434 - Multiple Symantec Products CVE-2016-2207 RAR Decompression Denial Of Service Vulnerability

scip Labs:
See also: 🔍


Created: 06/30/2016 11:59 AM
Updated: 08/25/2022 02:27 PM
Changes: 06/30/2016 11:59 AM (89), 07/07/2019 02:44 PM (8), 08/25/2022 02:27 PM (4)
Complete: 🔍


No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!