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CVE-2016-2203

48
FAUCET Score

CVE-2016-2203 is a high-severity vulnerability affecting Symantec Messaging Gateway (SMG) Appliance devices prior to version 10.6.1. It allows local users with certain read privileges to discover an encrypted Active Directory password from the management console. The vulnerability has a CVSS score of 7.8, indicating high confidentiality, integrity, and availability impacts, with low attack complexity and requiring local access. While not listed in CISA's KEV catalog, a Metasploit module exists for exploitation, and its EPSS score suggests a higher-than-average likelihood of exploitation. Despite this, there is minimal 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:10.6.0:patch3:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:patch5:*:*:*:*:*:*
10.6.0CPE matchmatch criteria
cpe:2.3:a:symantec:messaging_gateway:10.6.0:patch7:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.06%
Probability of exploitation in next 30 days
EPSS Percentile
93.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Symantec Messaging Gateway 10 Exposure of Stored AD Password Vulnerability · Dec 17, 2015
ExploitDB: EDB-39715 · Apr 21, 2016
This CVE's current EPSS score of 0.0706 is in the 99th percentile among its peer group of 16,994 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

packetstormsecurity.com / files/136758/Symantec-Brightmail-10.6.0-7-LDAP-Credential-Grabber.html
ExploitThird Party AdvisoryVDB Entry
exploit-db.com / exploits/39715
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/86137
ExploitThird Party AdvisoryVDB Entry
securitytracker.com / id/1035609
Third Party AdvisoryVDB Entry
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory