Exploited vulnerability CISA KEV
CVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerability
CVE-2026-83549 is a vulnerability in SonicWall SMA1000 Appliances that CISA added to its Known Exploited Vulnerabilities catalog on September 2, 2026, meaning there is evidence it is being exploited. US federal civilian agencies must complete the required action by September 5, 2026.
CVE-2026-83549 is a vulnerability in SonicWall SMA1000 Appliances that CISA added to its Known Exploited Vulnerabilities catalog on September 2, 2026, meaning there is evidence it is being exploited. US federal civilian agencies must complete the required action by September 5, 2026.
- CVE ID
- CVE-2026-83549
- Vendor / project
- SonicWall
- Product
- SMA1000 Appliances
- Added to KEV
- Due date
- Days to remediate
- 3
- Known ransomware use
- Unknown
- Weakness
- CWE-78
CISA description #
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.
Required action #
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Notes and references #
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-83549
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