Home/CVE/SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability
CVE

CVE-2021-20028

SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability

Improper neutralization of a SQL Command leading to SQL Injection vulnerability impacting end-of-life Secure Remote Access (SRA) products, specifically the SRA appliances running all 8.x firmware and 9.0.0.9-26sv or earlier.

CRITICAL · CVSS 9.8 ⚠ CISA KEV EPSS 0.808 Ransomware: known
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • Linked to known ransomware campaigns
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

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

⬡

Weakness Classification

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
▤

Affected Products & Versions

6
sonicwall sma 210 firmware>= 8.0.0.0 and < 9.0.0.10-28sv
sonicwall sma 410 firmware>= 8.0.0.0 and < 9.0.0.10-28sv
sonicwall sma 500v firmware>= 8.0.0.0 and < 9.0.0.10-28sv
sonicwall sra 4600 firmware>= 8.0.0.0 and < 9.0.0.10-28sv
sonicwall sra 1600 firmware>= 8.0.0.0 and < 9.0.0.10-28sv
sonicwall sra va firmware>= 8.0.0.0 and < 9.0.0.10-28sv
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Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · PSIRT@sonicwall.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Aug 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisaKEV-CVE-2021-20028
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0017Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20028US Government Resource
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