CVE-2014-3434

Exp

Buffer overflow in the sysplant driver in Symantec Endpoint Protection (SEP) Client 11.x and 12.x before 12.1 RU4 MP1b, and Small Business Edition before SEP 12.1, allows local users to execute arbitrary code via a long argument to a 0x00222084 IOCTL call.

Published: 2014-08-06 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3434 is rated High Exploit Risk (69.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.63%). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-3434

EDB-ID Source Kind Published Link
34272 exploit_db edb 2014-08-05 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-3434

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.63% 1.63% +1.00%
2 2026-03-22 0.68% 0.63% -0.05%
3 2026-01-14 — 0.68% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3434

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.9 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.4 10.0 [email protected]

Weakness enumeration for CVE-2014-3434

Affected software / configurations for CVE-2014-3434

Vendor Product Version Raw CPE
symantec endpoint_protection 11.0 cpe:2.3:a:symantec:endpoint_protection:11.0:*:*:*:*:*:*:*
symantec endpoint_protection 12.0 cpe:2.3:a:symantec:endpoint_protection:12.0:-:small_business:*:*:*:*:*
symantec endpoint_protection 12.1 cpe:2.3:a:symantec:endpoint_protection:12.1:*:*:*:*:*:*:*

References for CVE-2014-3434

cvelogic Threat Intelligence