Background exploitation KEV catalog
CVE-2023-44221

SonicWall SMA100 Appliances OS Command Injection Vulnerability

Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user, potentially leading to OS Command…

CheckOps priority index
7.0/10 Patch within 7 days
Severity7.2
Probability7.6
Exploitation3/5

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

EPSS · today 76.2% higher than 99.5% of CVEs
CVSS 3.1 7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:
Exploited for 551 days 01 May 2025
CISA due date 22 May 2025 for US federal agencies

Exploitation probability EPSS · FIRST

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

Exploitation signals 3 / 5

  • KEV catalog (CISA)01 May 2025
  • Exploited in EUVD (ENISA)01 May 2025
  • Used by ransomwareno
  • EPSS above 10 %76.2%
  • No account, over the networkno

What to do

Fix

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

CISA guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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

Description ENISA EUVD

Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user, potentially leading to OS Command Injection Vulnerability.

Affected products

SMA100SMA100 Appliances
Affected versions
  • 10.2.1.9-57sv and earlier versions
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: 76.2%

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-2021-20035SonicWall SMA100 Appliances OS Command Injection Vulnerability
    3.9 · 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