Unauthenticated SSRF in widely deployed SonicWall SMA1000 network appliance, CISA KEV-listed and CVSS 10.0; enables internal discovery and credential/data access, requiring org-wide attention.
CVE-2026-15409
Unauthenticated SSRF in SonicWall SMA1000 allowing arbitrary requests.
Is CVE-2026-15409 being exploited?
Yes. CVE-2026-15409 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-15409?
CVE-2026-15409 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-15409?
Yes. A fix has been recorded for CVE-2026-15409. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-15409 affect?
CVE-2026-15409 affects SonicWall SMA1000 Appliances, SMA1000 Work Place interface. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-15409?
Apply vendor mitigations/patches and isolate internet-exposed SMA1000 immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can force SMA1000 to make arbitrary HTTP requests to internal/external hosts, access cloud metadata, enumerate internal services, pivot, or steal credentials.
Immediate action required
- affected>= 12.4.3-03245 and <= 12.4.3-03434
- affected>= 12.5.0-02283 and <= 12.5.0-02800
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.