How severe is CVE-2026-83549?

CVE-2026-83549 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-83549 being actively exploited?

Yes. CVE-2026-83549 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-09-02, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-83549?

CVE-2026-83549 primarily affects Sonicwall Sma8200v. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-83549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

When was CVE-2026-83549 published?

CVE-2026-83549 was published on 2026-09-01 and last updated on 2026-09-03.

CVE-2026-83549

CVE-2026-83549 is a high-severity vulnerability in Sonicwall Sma8200v with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-09-02). The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-09-02)
Weakness: CWE-78
Affected product: Sonicwall Sma8200v
Published: 2026-09-01
Last modified: 2026-09-03

Description

Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.

Frequently asked questions

What is CVE-2026-83549?: Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.
How severe is CVE-2026-83549?: CVE-2026-83549 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-83549 being actively exploited?: Yes. CVE-2026-83549 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-09-02, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-83549?: CVE-2026-83549 primarily affects Sonicwall Sma8200v. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-83549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
When was CVE-2026-83549 published?: CVE-2026-83549 was published on 2026-09-01 and last updated on 2026-09-03.

References

Affected products (3)

cpe:2.3:a:sonicwall:sma8200v:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma6210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sonicwall:sma7210_firmware:*:*:*:*:*:*:*:*

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