Skip to content
CVE Tracker
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2018-0003

Junos OS: A crafted MPLS packet may lead to a kernel crash

Medium6.5EPSS 0.91%
Published
Updated
Reserved
Assigned by
juniper

Description

A specially crafted MPLS packet received or processed by the system, on an interface configured with MPLS, will store information in the system memory. Subsequently, if this stored information is accessed, this may result in a kernel crash leading to a denial of service. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D71; 12.3 versions prior to 12.3R12-S7; 12.3X48 versions prior to 12.3X48-D55; 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D45, 14.1X53-D107; 14.2 versions prior to 14.2R7-S7, 14.2R8; 15.1 versions prior to 15.1F5-S8, 15.1F6-S8, 15.1R5-S6, 15.1R6-S3, 15.1R7; 15.1X49 versions prior to 15.1X49-D100; 15.1X53 versions prior to 15.1X53-D65, 15.1X53-D231; 16.1 versions prior to 16.1R3-S6, 16.1R4-S6, 16.1R5; 16.1X65 versions prior to 16.1X65-D45; 16.2 versions prior to 16.2R2-S1, 16.2R3; 17.1 versions prior to 17.1R2-S2, 17.1R3; 17.2 versions prior to 17.2R1-S3, 17.2R2; 17.2X75 versions prior to 17.2X75-D50. No other Juniper Networks products or platforms are affected by this issue.

Scores

CVSS scores of CVE-2018-0003, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)3.0Medium6.5CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.0Medium6.5CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.91% · top 40% of all CVEs (6 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

  • Denial of Service

Affected products

  • Juniper Networks · Junos OS

    • affected 12.1X46 – < 12.1X46-D71
    • affected 12.3 – < 12.3R12-S7
    • affected 12.3X48 – < 12.3X48-D55
    • affected 14.1 – < 14.1R8-S5, 14.1R9
    • affected 14.1X53 – < 14.1X53-D45, 14.1X53-D107
    • affected 14.2 – < 14.2R7-S7, 14.2R8
    • affected 15.1 – < 15.1F5-S8, 15.1F6-S8, 15.1R5-S6, 15.1R6-S3, 15.1R7
    • affected 15.1X49 – < 15.1X49-D100
    • affected 15.1X53 – < 15.1X53-D65, 15.1X53-D231
    • affected 16.1 – < 16.1R3-S6, 16.1R4-S6, 16.1R5
    • affected 16.1X65 – < 16.1X65-D45
    • affected 16.2 – < 16.2R2-S1, 16.2R3
    • affected 17.1 – < 17.1R2-S2, 17.1R3
    • affected 17.2 – < 17.2R1-S3, 17.2R2
    • affected 17.2X75 – < 17.2X75-D50

What to do

Solution: The following software releases have been updated to resolve this specific issue: 12.1X46-D71, 12.3R12-S7, 12.3X48-D55, 14.1R8-S5, 14.1R9, 14.1X53-D45, 14.1X53-D107, 14.2R7-S7, 14.2R8, 15.1F5-S8, 15.1F6-S8, 15.1R5-S6, 15.1R6-S3, 15.1R7, 15.1X49-D100, 15.1X53-D65, 15.1X53-D231, 16.1R3-S6, 16.1R4-S6, 16.1R5, 16.1R3-S6, 16.1R4-S6, 16.1R5, 16.1X65-D45, 16.2R2-S1, 16.2R3, 17.1R2-S2, 17.1R3, 17.2R1-S3, 17.2R2, 17.2X75-D50, 17.3R1, and all subsequent releases.

Workaround: Disallow MPLS packets from reaching the device. Remove MPLS configuration stanzas from interface configurations that are at risk. No other viable workarounds exist for this issue.

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

References (3)

Sources

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

Badge for a README or a ticket

CVE-2018-0003 badge
[![CVE-2018-0003](https://trackcve.app/badge/CVE-2018-0003.svg)](https://trackcve.app/cve/CVE-2018-0003)

Record last updated .