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    CVE-2021-20039

    Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

    Published:Dec 8, 2021
    Last Modified:Sep 5, 2025
    EPS:Dec 8, 2021
    EPSS Score:0.58574
    CVSS Score:8.8

    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
    Vendor
    Sonicwall
    Product
    Sma 500v Firmware

    Exploits

    http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.htmlhttp://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html

    Related CVEs

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    CVE-2025-32819 (CVSS 8.8) — A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges to bypass the pat…
    CVE-2024-53703 (CVSS 8.1) — A vulnerability in the SonicWall SMA100 SSLVPN firmware 10.2.1.13-72sv and earlier versions mod_httprp library…
    CVE-2024-53702 (CVSS 5.3) — Use of cryptographically weak pseudo-random number generator (PRNG) vulnerability in the SonicWall SMA100 SSLV…
    CVE-2024-45319 (CVSS 6.3) — A vulnerability in the SonicWall SMA100 SSLVPN firmware 10.2.1.13-72sv and earlier versions allows a remote …
    CVE-2024-45318 (CVSS 8.1) — A vulnerability in the SonicWall SMA100 SSLVPN web management interface allows remote attackers to cause Stack…
    CVE-2024-40763 (CVSS 7.5) — Heap-based buffer overflow vulnerability in the SonicWall SMA100 SSLVPN due to the use of strcpy. This allows …
    CVE-2024-38475 (CVSS 9.1) — Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map …
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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