CVE-2017-2340

Name: CVE-2017-2340
Creator: NVD / NIST
Published: 2017-04-24T15:59:00.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.23%

Last modified Jun 17, 2026

CVE-2017-2340 is a vulnerability of currently unknown severity. On Juniper Networks Junos OS 15.1 releases from 15.1R3 to 15.1R4, 16.1 prior to 16.1R3, on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured, a vulnerability in processing IPv6 ND packets originating from subscribers and destined to M/MX series routers can result in a PFE (Packet Forwarding Engine) hang or crash.. EPSS estimates a 2.23% chance of exploitation in the next 30 days.

Description

On Juniper Networks Junos OS 15.1 releases from 15.1R3 to 15.1R4, 16.1 prior to 16.1R3, on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured, a vulnerability in processing IPv6 ND packets originating from subscribers and destined to M/MX series routers can result in a PFE (Packet Forwarding Engine) hang or crash.

Metrics

EPSS Probability

2.23%

80.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions	Update
Juniper	Junos	15.1	R3
Juniper	Junos	16.1	R1

References

http://www.securityfocus.com/bid/97607Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038254
https://kb.juniper.net/JSA10786Vendor Advisory
http://www.securityfocus.com/bid/97607Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038254
https://kb.juniper.net/JSA10786Vendor Advisory

Timeline

Published: Apr 24, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-2340?

How severe is CVE-2017-2340?

Severity scoring for CVE-2017-2340 is pending analysis. The EPSS model estimates a 2.23% probability of exploitation in the next 30 days.

How do I fix CVE-2017-2340?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2340?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST