July 14, 2026 · Applied Cybernetics Group
CVE-2026-15409 — SonicWall SMA1000 Appliances
known ransomware use
SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
- Added to KEV
2026-07-14- Federal due date
2026-07-17- Vendor
- SonicWall
- Product
- SMA1000 Appliances
- EPSS
- 99.7th percentile (score 0.845, as of
2026-09-16) - NVD CVSS v3.1
- 10 (CRITICAL)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-15409
CISA short description
SonicWall SMA1000 Appliances contain a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to potentially cause the appliance to make requests to unintended location.
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.
NVD description
A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A remote unauthenticated attacker could potentially cause the appliance to make requests to unintended location.