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CVE-2026-102033

CVE-2026-102033 · Junos OS and Junos OS Evolved: An attacker causes denial of service when MC-LAG MAC synchronization is enabled

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An Improper Validation of Specified Quantity in Input vulnerability in l2ald of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a denial of service via an ICCP MC-LAG message.

CVSS 7.1 · High · EPSS 0.3% · Fix available

Published
Updated

Affected products and versions

  • junos os

    Versions
    • ≥ 0, < 23.2R2-S7.7: Affected (custom)
    • ≥ 23.4, < 23.4R2-S8.13: Affected (custom)
    • ≥ 24.2, < 24.2R2-S5.5: Affected (custom)
    • ≥ 24.4, < 24.4R2-S5: Affected (custom)
    • ≥ 25.2, < 25.2R2-S2: Affected (custom)
    • ≥ 25.4, < 25.4R1-S3: Affected (custom)
    • ≥ 26.2, < 26.2R1-S2: Affected (custom)

    Update to 23.2R2-S7.7

  • junos os evolved

    Versions
    • ≥ 0, < 23.2R2-S7.7-EVO: Affected (custom)
    • ≥ 23.4, < 23.4R2-S8.11-EVO: Affected (custom)
    • ≥ 24.2, < 24.2R2-S5.6-EVO: Affected (custom)
    • ≥ 24.4, < 24.4R2-S5-EVO: Affected (custom)
    • ≥ 25.2, < 25.2R2-S2-EVO: Affected (custom)
    • ≥ 25.4, < 25.4R1-S3-EVO: Affected (custom)
    • ≥ 26.2, < 26.2R1-S2-EVO: Affected (custom)
    • 23.4X100: Affected (custom)
    • ≥ 25.2X100, < 25.2X100-D35-EVO: Affected (custom)
    • ≥ 25.4X300, < 25.4X300-D40-EVO: Affected (custom)

    Update to 23.2R2-S7.7-EVO

Original sources

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