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CVE-2021-20038 Scanner

Detects 'Buffer Overflow' vulnerability in SonicWall SMA100 affects v. SMA 200, 210, 400, 410 and 500v appliances firmware,, and earlier versions.


Short Info




Single Scan

Can be used by

Asset Owner

Estimated Time

10 sec

Scan only one

Domain, Ipv4

Parent Category

CVE-2021-20038 Scanner Detail

The SonicWall SMA100 is a popular remote access solution widely used by businesses to provide secure access to internal networks from remote locations. It is a hardware appliance that offers superior VPN connectivity, high-performance hardware, and advanced security features such as multi-factor authentication, endpoint protection, and content filtering.

However, like all software products, the SMA100 is not invincible against security vulnerabilities. One such vulnerability that has been detected recently is the CVE-2021-20038 buffer overflow vulnerability in the mod_cgi module environment variables of the Apache httpd server used by the appliance. This vulnerability potentially allows a remote attacker to execute malicious code within the system as a 'nobody' user.

If this vulnerability is successfully exploited, it can lead to serious consequences for the affected organization. Attackers can gain unauthorized access to sensitive data and compromise critical infrastructure within the network. They can also launch ransomware attacks, steal data, and cause extensive damage to the organization's reputation and finances.

In conclusion, the SonicWall SMA100 is a valuable tool for businesses looking to secure their remote access capabilities. However, it is important to be aware of the potential security vulnerabilities that can be exploited by cybercriminals. By taking the necessary precautions and keeping up to date with the latest security patches and updates, organizations can protect their SMA100 appliances and ensure their network remains secure. By using the pro features of the platform, organizations can easily and quickly learn about vulnerabilities in their digital assets and take proactive steps to mitigate any risks.



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