CVE-2017-2340

mediumpriority · track · 22EPSS 0.022 · 83 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.23% (83rd) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · FSTEC (BDU) RU

v3.04.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (8)

Products and version ranges known to be affected.

Juniper Networks Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured≤ 16.1 prior to 16.1R3enisa_euvdEU
Juniper Networks Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured≤ All releases prior to 15.1R3 are not affected.enisa_euvdEU
Juniper Networks Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured≤ 15.1 releases from 15.1R3 to 15.1R4enisa_euvdEU
Juniper Networks Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured≤ 16.2R1 and all subsequent releases have a resolution for this vulnerabilityenisa_euvdEU
Juniper Networks Inc. JunOS15.1R3 → 15.1R4fstec_bduRU
Juniper Networks Inc. JunOS16.1 → 16.1R3fstec_bduRU
juniper junos= 15.1nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 16.1nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2017-04-24modified 2026-06-17

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+25194 more

references (9)

External citations — patches, advisories, analysis.

scry

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