CVE-2019-0006

Junos OS: EX, QFX and MX series: Packet Forwarding Engine manager (FXPC) process crashes due to a crafted HTTP packet in a Virtual Chassis configuration

CRITICAL

9.8

CVSS Score

Published: January 15, 2019 at 09:00 PM UTC

Updated: June 17, 2026 at 02:07 AM UTC

31 products affected across 2 vendorsJunosQfx5200Qfx5110

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Severity

CRITICAL9.8

Exploit prediction

EPSS 5%

Description

A certain crafted HTTP packet can trigger an uninitialized function pointer deference vulnerability in the Packet Forwarding Engine manager (fxpc) on all EX, QFX and MX Series devices in a Virtual Chassis configuration. This issue can result in a crash of the fxpc daemon or may potentially lead to remote code execution. This issue only occurs when the crafted packet it destined to the device. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D47 on EX and QFX Virtual Chassis Platforms; 15.1 versions prior to 15.1R7-S3 all Virtual Chassis Platforms 15.1X53 versions prior to 15.1X53-D50 on EX and QFX Virtual Chassis Platforms.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos · Juniper Networks

95%

14.1X53 ≤ v < 14.1X53-D4715.1 ≤ v < 15.1R7-S315.1X53 ≤ v < 15.1X53-D5014.1X5314.1x5314.1x53 d10 14.1x53 d15 14.1x53 d16 14.1x53 d25 14.1x53 d26 14.1x53 d27 14.1x53 d30 14.1x53 d35 14.1x53 d40 14.1x53 d45 14.1x53 d46 14.1x53 r1 15.1 15.1 r1 15.1 r2 15.1 r3 15.1 r4 15.1 r5 15.1 r6 15.1X53 15.1x53 d20 15.1x53 d21 15.1x53 d30 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d50

Affected range stops below 14.1X53-D47, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1R7-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D50, so it looks safe — our inference, not a vendor statement

juniper-ex2200 (environment) · juniper-ex2200-c (environment) · juniper-ex2300 (environment) · juniper-ex2300-c (environment) · juniper-ex3300 (environment) · juniper-ex3400 (environment) · juniper-ex4200 (environment) · juniper-ex4300 (environment) · juniper-ex4500 (environment) · juniper-ex4550 (environment) · juniper-ex4600 (environment) · juniper-ex4650 (environment) · juniper-ex6210 (environment) · juniper-ex8208 (environment) · juniper-ex8216 (environment) · juniper-ex9204 (environment) · juniper-ex9208 (environment) · juniper-ex9214 (environment) · juniper-ex9251 (environment) · juniper-ex9253 (environment) · juniper-qfx10002 (environment) · juniper-qfx10008 (environment) · juniper-qfx10016 (environment) · juniper-qfx3500 (environment) · juniper-qfx3600 (environment) · juniper-qfx5100 (environment) · juniper-qfx5110 (environment) · juniper-qfx5120 (environment) · juniper-qfx5200 (environment) · juniper-qfx5210 (environment)

Ex2200 · Juniperdevice

80%

All versions

Ex2200-C · Juniperdevice

80%

All versions

Ex2300 · Juniperdevice

80%

All versions

Ex2300-C · Juniperdevice

80%

All versions