CVE-2021-20038NVD

Vulnerability Summary

A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances firmware 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv and earlier versions.

Severity Level

UNKNOWN

Published Date

Dec 8, 2021

Last Modified

Oct 21, 2025

PoC

Available(Nuclei)

Exploitation Status

ACTIVE

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-121: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

Affected & Patched Versions

Affected Versions

SonicWall SonicWall SMA100 >= 10.2.0.8-37sv and earlier
SonicWall SonicWall SMA100 >= 10.2.1.1-19sv and earlier
SonicWall SonicWall SMA100 >= 10.2.1.2-24sv and earlier

Patched Versions

Not provided by cveorg for this CVE.

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