THREATPORT/VULNERABILITY/CVE-2014-3817
HIGH SEVERITY

CVE-2014-3817

Junos vulnerability

CVSS
7.8
EPSS
3.4%
EPSS pct
87th
Exploited
No known
Juniper Junos 11.4 before 11.4R12, 12.1X44 before 12.1X44-D32, 12.1X45 before 12.1X45-D25, 12.1X46 before 12.1X46-D20, and 12.1X47 before 12.1X47-D10 on SRX Series devices, when NAT protocol translation from IPv4 to IPv6 is enabled, allows remote attackers to cause a denial of service (flowd hang or crash) via a crafted packet.
Affected vendor
Juniper
Affected product
Junos
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2014-07-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2014-3817

  • Confirm whether Juniper Junos is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2014-3817.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-3817

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2014-3817 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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