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CVE-2014-3434

27
FAUCET Score

CVE-2014-3434 describes a buffer overflow vulnerability in the sysplant driver of Symantec Endpoint Protection (SEP) Client 11.x and 12.x before 12.1 RU4 MP1b, and Small Business Edition before SEP 12.1. This flaw allows a local attacker to execute arbitrary code by providing an overly long argument to a specific IOCTL call. The vulnerability has a CVSS score of 6.9, indicating a medium severity. It requires local access (AV:L) and medium attack complexity (AC:M), but successful exploitation can lead to complete compromise of confidentiality, integrity, and availability (C:C/I:C/A:C). While not listed on the KEV catalog or Hot List, an exploit for local privilege escalation is available on ExploitDB. Despite this, there is no evidence of active exploitation, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:12.0:-:small_business:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:12.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

AV:L/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.63%
Probability of exploitation in next 30 days
EPSS Percentile
73.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-34272 · Aug 5, 2014
This CVE's current EPSS score of 0.0163 is in the 94th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/127772/Symantec-Endpoint-Protection-11.x-12.x-Kernel-Pool-Overflow.html
secunia.com / advisories/58996
secunia.com / advisories/59697
exchange.xforce.ibmcloud.com / vulnerabilities/95062
exploit-db.com / exploits/34272
Exploit
kb.cert.org / vuls/id/252068
US Government Resource
osvdb.org / 109663
securityfocus.com / bid/68946
Exploit
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory