Background exploitation KEV catalog Ransomware No authentication
CVE-2019-7481

SonicWall SMA100 SQL Injection Vulnerability

Vulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources. This vulnerablity impacted SMA100 version 9.0.0.3 and earlier.

CheckOps priority index
9.0/10 Patch within 24 h
Severity7.5
Probability10.0
Exploitation5/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 99.9% higher than 99.97% of CVEs
CVSS 3.1 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:
Exploited for 1,826 days 03 Nov 2021
CISA due date 03 May 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 5 / 5

  • KEV catalog (CISA)03 Nov 2021
  • Exploited in EUVD (ENISA)03 Nov 2021
  • Used by ransomwareyes
  • EPSS above 10 %99.9%
  • No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

SMA100
Affected versions
  • 9.0.0.3 and earlier
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 99.9%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2026-83549SonicWall SMA1000 Appliances OS Command Injection Vulnerability
    4.6 · Actively exploited
  • CVE-2026-83548SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
    6.0 · Actively exploited
  • CVE-2026-15410SonicWall SMA1000 Appliances Code Injection Vulnerability
    5.6 · Actively exploited
  • CVE-2026-15409SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
    6.6 · Actively exploited
  • CVE-2025-40602SonicWall SMA1000 Missing Authorization Vulnerability
    3.9 · Background exploitation
  • CVE-2023-44221SonicWall SMA100 Appliances OS Command Injection Vulnerability
    7.0 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities