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CVE Watch—

CVE-2021-20038

SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability

CVSS

—

No CVSS

EPSS

99.9%

p100

KEV

YES

Jan 28, 2022

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d
99.9%EPSS · 30 days99.9%
2026-08-022026-08-30
KEV catalog record

Product

SonicWall / SMA 100 Appliances

Vulnerability

SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability

Added to KEV

Jan 28, 2022

Remediate by

Feb 11, 2022

Known ransomware use

Yes

Summary description

SonicWall SMA 100 devies are vulnerable to an unauthenticated stack-based buffer overflow vulnerability where exploitation can result in code execution.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-20038

Related CVEs

No related CVEs by CWE or product.