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CVE-2026-83549 is a post-authentication OS command injection flaw in SonicWall SMA1000 Appliance Management Console.
It is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command.
The vulnerable component is the AMC, the administrative web interface used to manage SMA1000 appliances.
The affected platform includes SonicWall SMA1000, with specific firmware builds for SMA8200v, SMA6210, and SMA7210.
The weakness occurs when user-controlled input reaches an OS command without adequate neutralization.
An attacker must already be authenticated as an administrator to reach the vulnerable functionality.
The attacker also needs remote access to the AMC interface, either directly or through exposed management paths.
Once authenticated, the attacker can supply crafted input containing shell metacharacters.
Typical metacharacters include semicolons, pipes, ampersands, backticks, dollar-parentheses, and newlines.
If the application concatenates that input into a system command, the injected command may execute.
This results in arbitrary OS command execution on the underlying appliance.
Because the AMC runs with appliance-level privileges, command execution can compromise the device.
The vulnerability is described as leading to remote code execution under specific conditions.
The attacker profile is remote and authenticated as administrator, not unauthenticated.
The CISA Known Exploited Vulnerabilities Catalog lists this issue as known exploited.
CISA added it on September 02, 2026.
The CISA due date is September 05, 2026.
The required action is to apply mitigations per vendor instructions.
CISA references BOD 22-01 and BOD 26-04 guidance for prioritization.
The vendor advisory source is SonicWALL, Inc.
CISA-ADP is also listed as a source.
NVD published the CVE on September 01, 2026.
NVD last modified the entry on September 03, 2026.
The affected SMA8200v range is up to excluding 12.4.3-03526.
The affected SMA8200v range also includes 12.5.0 up to excluding 12.5.0-02952.
The SMA6210 firmware follows the same vulnerable version boundaries.
The SMA7210 firmware follows the same vulnerable version boundaries.
SonicWall lists affected products as 12.4.3-03453 platform-hotfix and older.
SonicWall also lists 12.5.0-02835 platform-hotfix and older as affected.
Exploitation can lead to command execution, device compromise, and follow-on network access.
DailyCVE Form:
Platform: SonicWall SMA1000
Version: 12.4.3-03453, 12.5.0-02835
Vulnerability : OS Command Injection
Severity: Critical
date: Sep 01 2026
Prediction: 2026-09-05
(end of form)
What Undercode Say:
Analytics:
CVE="CVE-2026-83549"
curl -s "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=${CVE}" | jq '.vulnerabilities[bash].cve | {id, published, lastModified, descriptions, weaknesses, configurations}'
curl -s "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json" | jq '.vulnerabilities[] | select(.cveID=="CVE-2026-83549")'
echo "Affected: SonicWall SMA1000 12.4.3-03453 and older"
echo "Affected: SonicWall SMA1000 12.5.0-02835 and older"
echo "Fixed: 12.4.3-03526 or later"
echo "Fixed: 12.5.0-02952 or later"
Exploit: (Educational Purposes!)
Authorized lab only. Do not run against systems without permission. Concept: post-auth AMC input reaches an OS command. Harmless proof placeholder: curl -k -b "session=ADMIN_SESSION" "https://SMA1000-AMC/vulnerable_parameter=value;id" Verify command context: whoami id uname -a Review AMC logs for shell metacharacter handling: grep -Ei ';|||&|`|\$(|%0a' /var/log/amc 2>/dev/null
Protection: from this CVE
Apply vendor fixed builds 12.4.3-03526 and 12.5.0-02952 or later.
Restrict AMC access to trusted administrative networks.
Enforce MFA and least privilege for administrator accounts.
Monitor AMC logs for shell metacharacters and unexpected command execution.
Follow CISA BOD 22-01 and BOD 26-04 mitigation guidance.
Discontinue product use if mitigations are unavailable.
Impact:
Arbitrary OS command execution on SMA1000 appliances.
Remote code execution under specific conditions.
Full appliance compromise and persistence.
Administrator credential abuse and lateral movement.
Known exploitation per CISA KEV catalog.
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Sources:
Reported By: nvd.nist.gov
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