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…

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.

Scores

EPSS (exploitation in 30 days)

2.2% · top 17% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• denial of service vulnerability
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• Juniper Networks · Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured

  • affected 15.1 releases from 15.1R3 to 15.1R4
  • affected 16.1 prior to 16.1R3
  • affected 16.2R1 and all subsequent releases have a resolution for this vulnerability
  • affected All releases prior to 15.1R3 are not affected.

References (3)

• https://kb.juniper.net/JSA10786 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1038254 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 97607 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2017-2340](https://trackcve.app/badge/CVE-2017-2340.svg)](https://trackcve.app/cve/CVE-2017-2340)

Record last updated 5 Aug 2024, 13:48 UTC.