Exploited vulnerabilities / CVE-2026-15409
Confirmed exploited · server-side request forgery · SonicWall SMA1000 AppliancesCVE-2026-15409
SonicWall SMA1000 Appliances server-side request forgery, confirmed exploited in the wild.
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.
| CISA's name for it | SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability |
|---|---|
| Vendor and product | SonicWall · SMA1000 Appliances |
| Type | server-side request forgery · CWE-918 |
| Exploited | Confirmed by CISA listed 14 July 2026 |
| Likelihood | more likely to be exploited than most |
| Deadline | 17 July 2026 · already passed |
| Used in ransomware | Yes: CISA reports it used in ransomware campaigns |
| Advisories | psirt.global.sonicwall.com ↗ · www.cisa.gov ↗ · www.cisa.gov ↗ · nvd.nist.gov ↗ |
Three steps, in this order
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited.
If you cannot patch now, restrict network access to the affected product.
Check for signs of compromise since the date it was added to the list.
| CISA's 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. |
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Know before someone else finds it
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CVE-2026-15409 in short
Is CVE-2026-15409 being exploited?
Yes. CISA added CVE-2026-15409 to its Known Exploited Vulnerabilities catalogue on 14 July 2026, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2026-15409?
US federal agencies must remediate it by 17 July 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2026-15409 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 6.8%, the 94th percentile of every CVE it scores.
How do I fix CVE-2026-15409?
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited. If you cannot patch now, restrict network access to the affected product. Check for signs of compromise since the date it was added to the list.
Other SonicWall vulnerabilities being exploited
| CVE | Product | Type | Listed |
|---|---|---|---|
| CVE-2026-19868 | SonicOS SSLVPN | exploited vulnerability | 6 November 2026 |
| CVE-2026-83548 | SMA1000 Appliances | server-side request forgery | 2 September 2026 |
| CVE-2026-83549 | SMA1000 Appliances | remote code execution | 2 September 2026 |
| CVE-2026-15410 | SMA1000 Appliances | command injection | 14 July 2026 |
| CVE-2025-40602 | SMA1000 appliance | privilege escalation | 17 December 2025 |
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.