CVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
SonicWall SMA1000 Appliances contains an OS command injection vulnerability that could enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.
CSIRTS triage
- What
- SonicWall SMA1000 appliances contain an OS command injection vulnerability in the Appliance Management Console allowing authenticated administrators to execute arbitrary OS commands.
- Who is affected
- Deployments of SonicWall SMA1000 where administrative accounts may be compromised or where insider threats exist.
- Urgency
- Critical; actively exploited and enables full remote code execution for authenticated attackers.
- Action
- Apply the latest SonicWall platform-hotfix update and restrict administrative access to trusted networks.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-83549
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2026-83549Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 58% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-83549 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownexploitedSonicWall security advisory (AV26-872) – Update 1cccs
- highexploitedCISA Adds Seven Known Exploited Vulnerabilities to Catalogcisa
- criticalexploited[NEW] [critical] SonicWall SMA: Multiple vulnerabilitiescert-bund
- unknownexploitedNCSC-2026-0337 [1.00] [H/H] Zero-Day vulnerabilities patched in SonicWall SMA1000 Appliancencsc-nl
- unknownexploitedMultiple vulnerabilities in SonicWall products (02 September 2026)cert-fr-avis
- highexploitedCVE-2026-83549: Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Com…nvd
Recent advisories for SonicWall SMA1000 Appliances
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownexploitedNCSC-2026-0337 [1.00] [H/H] Zero-Day vulnerabilities patched in SonicWall SMA1000 Appliancencsc-nl · 2026-09-02
- criticalexploitedCVE-2026-83548: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerabilitycisa-kev · 2026-09-02
- criticalexploitedCVE-2026-15409: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerabilitycisa-kev · 2026-07-14
- criticalexploitedCVE-2026-15410: SonicWall SMA1000 Appliances Code Injection Vulnerabilitycisa-kev · 2026-07-14
- criticalexploitedCVE-2025-23006: SonicWall SMA1000 Appliances Deserialization Vulnerabilitycisa-kev · 2025-01-24
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