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    CVE-2021-20035

    Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.

    Published:Sep 27, 2021
    Last Modified:Oct 31, 2025
    EPS:Sep 27, 2021
    EPSS Score:0.06464
    CVSS Score:6.5

    CISA Notification

    Description

    Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    May 7, 2025
    492 days ago
    Alert Date
    Apr 16, 2025
    513 days ago

    Affected Products

    Vendor
    Sonicwall
    Product
    Sma 200
    Vendor
    Sonicwall
    Product
    Sma 200 Firmware
    Vendor
    Sonicwall
    Product
    Sma 210
    Vendor
    Sonicwall
    Product
    Sma 210 Firmware
    Vendor
    Sonicwall
    Product
    Sma 400
    Vendor
    Sonicwall
    Product
    Sma 400 Firmware
    Vendor
    Sonicwall
    Product
    Sma 410
    Vendor
    Sonicwall
    Product
    Sma 410 Firmware
    Vendor
    Sonicwall
    Product
    Sma 500v

    Exploits

    No exploit reference

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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