CVE-2024-47496

Junos OS: MX Series: The PFE will crash on running specific command

MEDIUM

5.5

CVSS Score

Published: October 11, 2024 at 03:28 PM UTC

Updated: June 17, 2026 at 07:57 AM UTC

1 product affected across 1 vendorJunos

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service (DoS). When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the system self-recovers. Repeated execution will create a sustained DoS condition. This issue only affects MX Series devices with Line cards MPC1-MPC9. This issue affects: Junos OS on MX Series: * All versions before 21.4R3-S9, * from 22.2 before 22.2R3-S5, * from 22.3 before 22.3R3-S4, * from 22.4 before 22.4R3-S2, * from 23.2 before 23.2R2-S1, * from 23.4 before 23.4R2.

Affected

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

Junos · Juniper Networks

95%

v < 21.4v < 21.4R3-S922.2 ≤ v < 22.2R3-S522.3 ≤ v < 22.3R3-S422.4 ≤ v < 22.4R3-S223.2 ≤ v < 23.2R2-S123.4 ≤ v < 23.4R221.4 21.4 r1 21.4 r1-s1 21.4 r1-s2 21.4 r2 21.4 r2-s1 21.4 r2-s2 21.4 r3 21.4 r3-s1 21.4 r3-s10 21.4 r3-s11 21.4 r3-s12 21.4 r3-s2 21.4 r3-s3 21.4 r3-s4 21.4 r3-s5 21.4 r3-s6 21.4 r3-s7 21.4 r3-s8 22.2 22.2 r1 22.2 r1-s1 22.2 r1-s2 22.2 r2 22.2 r2-s1 22.2 r2-s2 22.2 r3 22.2 r3-s1 22.2 r3-s2 22.2 r3-s3 22.2 r3-s4 22.3 22.3 r1 22.3 r1-s1 22.3 r1-s2 22.3 r2 22.3 r2-s1 22.3 r2-s2 22.3 r3 22.3 r3-s1 22.3 r3-s2 22.3 r3-s3 22.4 22.4 r1 22.4 r1-s1 22.4 r1-s2 22.4 r2 22.4 r2-s1 22.4 r2-s2 22.4 r3 22.4 r3-s1 23.2 23.2 r1 23.2 r1-s1 23.2 r1-s2 23.2 r2 23.4 23.4 r1 23.4 r1-s1 23.4 r1-s2

Affected range stops below 21.4R3-S9, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.2R3-S5, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.3R3-S4, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.4R3-S2, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.2R2-S1, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.4R2, so it looks safe — our inference, not a vendor statement

juniper-2x100ge-4x10ge-mpc5e (environment) · juniper-2x100ge-4x10ge-mpc5eq (environment) · juniper-2x100ge-8x10ge-mpc4e (environment) · juniper-32x10ge-mpc4e (environment) · juniper-6x40ge-24x10ge-mpc5e (environment) · juniper-6x40ge-24x10ge-mpc5eq (environment) · juniper-mpc1 (environment) · juniper-mpc1-q (environment) · juniper-mpc1e (environment) · juniper-mpc1e-q (environment) · juniper-mpc2 (environment) · juniper-mpc2-eq (environment) · juniper-mpc2-q (environment) · juniper-mpc2e (environment) · juniper-mpc2e-eq (environment) · juniper-mpc2e-ng (environment) · juniper-mpc2e-ng-q (environment) · juniper-mpc2e-p (environment) · juniper-mpc2e-q (environment) · juniper-mpc3e (environment) · juniper-mpc3e-3d-ng (environment) · juniper-mpc3e-3d-ng-q (environment) · juniper-mpc6e (environment) · juniper-mpc7e-10g (environment) · juniper-mpc7e-mrate (environment) · juniper-mpc8e (environment) · juniper-mpc9e (environment) · juniper-mx2008 (environment) · juniper-mx2010 (environment) · juniper-mx240 (environment) · juniper-mx480 (environment) · juniper-mx960 (environment)