Junos OS: NFX150 Series, QFX10K Series, EX9200 Series, MX Series, PTX Series: Path traversal vulnerability in NFX150 and NG-RE leads to information disclosure.

Description

A path traversal vulnerability in NFX150 Series and QFX10K Series, EX9200 Series, MX Series and PTX Series devices with Next-Generation Routing Engine (NG-RE) allows a local authenticated user to read sensitive system files. This issue only affects NFX150 Series and QFX10K Series, EX9200 Series, MX Series and PTX Series with Next-Generation Routing Engine (NG-RE) which uses vmhost. This issue affects Juniper Networks Junos OS on NFX150 Series and QFX10K, EX9200 Series, MX Series and PTX Series with NG-RE and vmhost: 15.1F versions prior to 15.1F6-S12 16.1 versions starting from 16.1R6 and later releases, including the Service Releases, prior to 16.1R6-S6, 16.1R7-S3; 17.1 versions prior to 17.1R3; 17.2 versions starting from 17.2R1-S3, 17.2R3 and later releases, including the Service Releases, prior to 17.2R3-S1; 17.3 versions starting from 17.3R1-S1, 17.3R2 and later releases, including the Service Releases, prior to 17.3R3-S3; 17.4 versions starting from 17.4R1 and later releases, including the Service Releases, prior to 17.4R1-S6, 17.4R2-S2, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R2; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S2, 18.3R2; 18.4 versions prior to 18.4R1-S1, 18.4R2. This issue does not affect: Juniper Networks Junos OS 15.1 and 16.2.

Scores

EPSS (exploitation in 30 days)

0.36% · top 71% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

• privilege escalation
• Improper Privilege Management.
• CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)All about CWE-22 and its CVEs
• CWE-23 Relative Path Traversal (opens in a new tab)All about CWE-23 and its CVEs

Affected products

• Juniper Networks · Junos OS

  • unaffected 15.1
  • unaffected 16.2 16.2
  • affected 15.1F – < 15.1F6-S12
  • affected 16.1R6 – < 16.1*
  • affected 17.1 – < 17.1R3
  • affected 17.2R1-S3, 17.2R3 – < 17.2*
  • affected 17.3R1-S1, 17.3R2 – < 17.3*
  • affected 17.4R1 – < 17.4*
  • affected 18.1 – < 18.1R2-S4, 18.1R3-S3
  • affected 18.2 – < 18.2R2
  • affected 18.2X75 – < 18.2X75-D40
  • affected 18.3 – < 18.3R1-S2, 18.3R2
  • affected 18.4 – < 18.4R1-S1, 18.4R2

What to do

Solution: The following software releases have been updated to resolve these specific issues: 15.1F6-S12, 16.1R6-S6, 16.1R7-S3, 17.1R3, 17.2R3-S1, 17.3R3-S3, 17.4R1-S6, 17.4R2-S2, 17.4R3, 18.1R2-S4, 18.1R3-S3, 18.2R2, 18.2R3, 18.2X75-D40, 18.3R1-S2, 18.3R2, 18.4R1-S1, 18.4R2, 19.1R1, and all subsequent releases.

Workaround: There are no known workarounds for this issue.

Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

References (1)

• https://kb.juniper.net/JSA10975 (opens in a new tab)x_refsource_MISCx_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-2019-0074](https://trackcve.app/badge/CVE-2019-0074.svg)](https://trackcve.app/cve/CVE-2019-0074)

Record last updated 17 Sept 2024, 03:38 UTC.