CISA KEV · Known exploitedCritical

CVE-2021-20028

SonicWall Secure Remote Access (SRA)

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

CVSS
9.8
EPSS
29.9%
98.0% percentile
CISA KEV
Listed
Published
2021.08.05
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability29.9%
Technical severityCVSS 9.8

Vulnerability overview

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

Affected product and versions

Product
SonicWall Secure Remote Access (SRA)
Affected versions
8.x firmware, 9.0.0.9-26sv and earlier., >= 8.0.0.0 < 9.0.0.10-28sv
Fixed versions
9.0.0.10-28sv

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2022.04.18
  1. 1
    Identify

    Confirm that SonicWall Secure Remote Access (SRA) and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-89
KEV added
2022.03.28
Ransomware use
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CVE-2021-20028 — SonicWall Secure Remote Access (SRA) | SECUFOCUS NOW