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CVE-2016-2209

45
FAUCET Score

CVE-2016-2209 describes a buffer overflow vulnerability in the Dec2SS.dll component of Symantec's AntiVirus Decomposer engine, impacting numerous Symantec and Norton products across various platforms. This flaw allows remote attackers to execute arbitrary code by processing a specially crafted file. With a CVSS v3 score of 7.3 (HIGH), the vulnerability is easily exploitable with low attack complexity and no user interaction, potentially leading to significant impact on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, a Proof-of-Concept exploit is publicly available on ExploitDB, and the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0, <= 7.0.4CPE matchmatch criteria
cpe:2.3:a:symantec:mail_security_for_microsoft_exchange:*:*:*:*:*:*:*:*
>= 7.5, <= 7.5.4CPE matchmatch criteria
cpe:2.3:a:symantec:mail_security_for_microsoft_exchange:*:*:*:*:*:*:*:*
6.5.8CPE matchmatch criteria
cpe:2.3:a:symantec:mail_security_for_microsoft_exchange:6.5.8:*:*:*:*:*:*:*
<= 5.0CPE matchmatch criteria
cpe:2.3:a:symantec:norton_power_eraser:*:*:*:*:*:*:*:*
>= 7.0.0, <= 7.0.5CPE matchmatch criteria
cpe:2.3:a:symantec:protection_engine:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
20.89%
Probability of exploitation in next 30 days
EPSS Percentile
97.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-40037 · Jun 29, 2016
This CVE's current EPSS score of 0.2089 is in the 99th percentile among its peer group of 3,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exploit-db.com / exploits/40037
Third Party AdvisoryVDB Entry
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory
securityfocus.com / bid/91436
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036198
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036199
Third Party AdvisoryVDB Entry