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CVE-2016-2204

24
FAUCET Score

CVE-2016-2204 describes a critical vulnerability in Symantec Messaging Gateway (SMG) Appliance devices prior to version 10.6.1. This flaw allows highly privileged local users to gain root-shell access through specially crafted input within the management console's terminal window. With a CVSS score of 8.2 (HIGH), this vulnerability poses a significant risk, enabling complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:*:7:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:1:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:2:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:3:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.2HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 91st percentile among its peer group of 360 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityfocus.com / bid/86138
securitytracker.com / id/1035609
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory