CVE-2026-15409: SonicWall SMA1000 Appliances

What is CVE-2026-15409?

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.

CVSS10 NVD 3.1

SeverityCRITICAL

Exploitation In the wild In CISA KEV

EPSS7% · P94

Triage statusActive Exploit

ActionPatch immediately

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWECWE-918

NVD published2026-07-14

NVD last modified2026-07-16

Timeline

2026-07-14Published to the U.S. National Vulnerability Database (NVD)
2026-07-14Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
2026-07-15First covered in a defend.network daily briefing
2026-07-16NVD record last updated
2026-07-17CISA federal remediation deadline (BOD 22-01)

CISA Known Exploited Vulnerability

SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Added to KEV2026-07-14

Federal patch deadline2026-07-17

Known ransomware useKnown

Affected product

SonicWall SMA1000 Appliances

NVD also lists CPE entries for: Sonicwall Sma6210 Firmware, Sonicwall Sma6210, Sonicwall Sma7210 Firmware, Sonicwall Sma7210, Sonicwall Sma8200v

Remediation Steps

Apply the vendor security update for SonicWall SMA1000 Appliances as a priority.
Restrict network exposure of the affected service to trusted sources until patched.
Review logs and detections for indicators of exploitation.
Confirm fixed versions against the official vendor advisory before deploying.

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 2 of August 2026 (August 10 – 16)
Vulnerability Priority Report – Week 1 of August 2026 (August 3 – 9)
Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
Vulnerability Priority Report – Week 3 of July 2026 (July 20 – 26)
Vulnerability Priority Report – Week 2 of July 2026 (July 13 – 19)
WordPress, SonicWall zero-days in active exploitation; FakeGit malware campaign hits 7,600 GitHub repos (2026-07-21)
Scattered Spider sentenced; Microsoft patches record 570 flaws; macOS ClickLock stealer active (2026-07-17)
Critical zero-days in Microsoft Active Directory, SonicWall SMA1000, GitHub malware campaign (2026-07-15)

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.