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Medium severity6.5NVD Advisory· Published Jul 20, 2022· Updated Jun 17, 2026

CVE-2022-22210

CVE-2022-22210

Description

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions.

Affected products

26
  • Juniper Networks/Junos24 versions
    cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:*+ 23 more
    • cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.3:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
    • (no CPE)range: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1
    • (no CPE)range: unspecified
  • Juniper Networks/QFX5000 Seriesllm-fuzzy
    Range: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1
  • Juniper Networks/MX Seriesllm-fuzzy
    Range: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1

Patches

Vulnerability mechanics

References

1

News mentions

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