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TI-2017-01621 Aliases CVE-2017-2340GHSA-52f2-j43x-hh76

Improper input validation in Juniper Junos OS on M/MX platforms where Enhanced Subscriber…

Priority LOW 28CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.02235 82nd percentileScored 2026-11-07
Fix Fixed Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured (Juniper Networks): 16.1R3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured15.1 releases from 15.1R3 to 15.1R4; 16.1 to before 16.1R3; 16.2R1 and all subsequent releases have a resolution for this vulnerability; All releases prior to 15.1R3 are not affected.16.1R3Patch availableCNA
  • Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured VendorJuniper Affected 15.1 releases from 15.1R3 to 15.1R4; 16.1 to before 16.1R3; 16.2R1 and all subsequent releases have a resolution for this vulnerability; All releases prior to 15.1R3 are not affected. Fixed in 16.1R3 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:*15.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*15.1 r4VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*16.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*16.1 r2VulnerableJuniper
  • cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* Versions 15.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* Versions 15.1 r4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* Versions 16.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* Versions 16.1 r2 Vulnerable ·Juniper

Remediation

  • Fix · CNA Junos OS on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured (Juniper Networks) Fixed in 16.1R3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-2340
  2. 2026-10-03 Alias added: GHSA-52f2-j43x-hh76

References

Advisory 1

  • TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
  • TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
  • TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
See all 792 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences