CVE-2014-3817

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

3.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2014-07-11 20:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:08 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.4% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-07-11 20:55 UTC

Last modified

2026-06-17 00:08 UTC

Exploit probability

3.4% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Juniper Junos 11.4
• Juniper Junos 12.1x44
• Juniper Junos 12.1x45
• Juniper Junos 12.1x46
• Juniper Junos 12.1x47
• Juniper srx100
• Juniper srx110
• Juniper srx1400

Attack profile CVSS 2.0 · 7.8

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2014-3817.md and follow it. Check whether this project is affected by CVE-2014-3817. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge