CVE-2014-3814

The Juniper Networks NetScreen Firewall devices with ScreenOS before 6.3r17, when configured to use the internal DNS lookup client, allows remote attackers to cause a denial of service (crash and reboot) via a sequence of malformed packets to the device IP.

Published: 2014-06-13 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3814 is rated Moderate Risk (53.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.46%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2014-3814

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 2025-03-17 0.21% 0.46% +0.25%
2 2024-12-17 0.30% 0.21% -0.09%
3 2023-03-07 — 0.30% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3814

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2014-3814

Affected software / configurations for CVE-2014-3814

Vendor Product Version Raw CPE
juniper screenos <= 6.3.0 cpe:2.3:o:juniper:screenos:*:*:*:*:*:*:*:*
juniper screenos 6.0.0 cpe:2.3:o:juniper:screenos:6.0.0:*:*:*:*:*:*:*
juniper screenos 6.1.0 cpe:2.3:o:juniper:screenos:6.1.0:*:*:*:*:*:*:*
juniper screenos 6.2.0 cpe:2.3:o:juniper:screenos:6.2.0:*:*:*:*:*:*:*
juniper netscreen-5200 — cpe:2.3:h:juniper:netscreen-5200:-:*:*:*:*:*:*:*
juniper netscreen-5400 — cpe:2.3:h:juniper:netscreen-5400:-:*:*:*:*:*:*:*

References for CVE-2014-3814

cvelogic Threat Intelligence