Mozilla Firefox < 50.0.2 RCE

High Nessus Network Monitor Plugin ID 9850


The remote host has a web browser installed that is vulnerable to a remote code execution (RCE) attack vector.


Versions of Mozilla Firefox prior to 50.0.2 are unpatched for a use-after-free condition in 'dom/smil/nsSMILTimeContainer.cpp' that is triggered when handling SVG animations. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and execute arbitrary code.


Upgrade to Firefox version 50.0.2 or later.

See Also

Plugin Details

Severity: High

ID: 9850

Family: Web Clients

Published: 2017/01/05

Updated: 2019/03/06

Dependencies: 9131

Nessus ID: 95472, 95475

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSS v3.0

Base Score: 8.1

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Patch Publication Date: 2016/11/28

Vulnerability Publication Date: 2016/11/24

Exploitable With

Metasploit (windows/browser/firefox_smil_uaf.rb)

Reference Information

CVE: CVE-2016-9079

BID: 94591