HOMEVULNERABILITIESCVE-2021-20028
HIGHCISA KEVIN THE WILD

CVE-2021-20028

Published: March 28, 2022

EPSS:85.69%probability of exploitation in 30 daysPercentile:99.4th

Official Description

SonicWall Secure Remote Access (SRA) products contain an improper neutralization of a SQL Command leading to SQL injection.

NVD Source

CISA KEV Advisory

SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability

SonicWall Secure Remote Access (SRA) products contain an improper neutralization of a SQL Command leading to SQL injection.

Added to KEV: 2022-03-28Federal patch deadline: 2022-04-18⚠ USED IN RANSOMWARE CAMPAIGNS
Required Action (CISA)

The impacted product is end-of-life and should be disconnected if still in use.

Risk Analysis

SonicWall Secure Remote Access (SRA) products are susceptible to SQL injection due to improper neutralization of SQL commands. This high-severity flaw has a very high EPSS score of 0.85685, indicating a strong likelihood of exploitation.

This vulnerability has been actively exploited in the wild and is listed in CISA's KEV catalog. Attackers are actively leveraging this flaw.

Recommended Action

It is critical to apply all available patches and updates for SonicWall Secure Remote Access products. Additionally, implement robust input validation and parameterized queries to prevent SQL injection attacks.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-20028 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-20028 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (1)

Quick Facts

CVE IDCVE-2021-20028
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)85.69%
PublishedMar 28, 2022

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-20028 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.