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    CVE-2021-0294

    A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series, and if "storm-control enhanced" is configured, can lead to the enhanced storm control filter group not be installed. It will cause storm control not to work hence allowing an attacker to cause high CPU usage or packet loss issues by sending a large amount of broadcast or unknown unicast packets arriving the device. This issue affects Juniper Networks QFX5100, QFX5110, QFX5120, QFX5200, QFX5210, EX4600, and EX4650, and QFX5100 with QFX 5e Series image installed. QFX5130 and QFX5220 are not affected from this issue. This issue affects Juniper Networks Junos OS 18.4R2-S5 on QFX5000 Series and EX4600 Series. No other product or platform is affected by this vulnerability.

    Published:Jul 15, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 15, 2021
    EPSS Score:0.0023
    CVSS Score:5.3

    Affected Products

    Vendor
    Juniper
    Product
    Ex4600
    Vendor
    Juniper
    Product
    Ex4650
    Vendor
    Juniper
    Product
    Junos
    Vendor
    Juniper
    Product
    Qfx5100
    Vendor
    Juniper
    Product
    Qfx5110
    Vendor
    Juniper
    Product
    Qfx5120
    Vendor
    Juniper
    Product
    Qfx5200
    Vendor
    Juniper
    Product
    Qfx5210

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High