Rapid7 MDR Team Discovers New SonicWall SMA1000 Zero Days being Actively Exploited (CVE-2026-15409, CVE-2026-15410)

Sicherheitsmeldung mit Schweregrad kritisch (CVSS 10.0). Sie wird laut CISA-KEV aktiv ausgenutzt und sollte priorisiert behandelt werden. Betroffene Kennungen: CVE-2026-15409, CVE-2026-15410. Technische Details im Tab „Originaltext“; empfohlene Schritte in der Checkliste.

Originaltext der Quelle (nicht übersetzt) – die deutsche Zusammenfassung findest du im Tab „Kurzfassung".

OverviewOn July 14, 2026, SonicWall published a security advisory addressing two vulnerabilities affecting SMA1000 Series remote access appliances, including the critical server-side request forgery (SSRF) vulnerability CVE-2026-15409 (CVSS 10.0) and the high-severity code injection vulnerability CVE-2026-15410. The advisory urges customers to immediately apply the latest platform hotfix releases.Successful exploitation of CVE-2026-15409 permits an unauthenticated attacker to open a websocket-based tunnel to arbitrary localhost-only services, while CVE-2026-15410 is a local privilege escalation that permits an attacker with access to an internal service listening on port 8188 on localhost to execute arbitrary operating system commands as root via a malicious path traversal-based remove_hotfix workflow.Both vulnerabilities are being actively exploited in the wild. Prior to SonicWall’s official vulnerability disclosure, Rapid7’s Managed Detection and Response team observed active, targeted zero-day exploitation of internet-facing SMA 1000-series appliances. In the SonicWall advisory, exploitation in the wild was noted, and both CVE-2026-15409 and CVE-2026-15410 have been added to CISA's Known Exploited Vulnerabilities (KEV) catalog. Given the confirmed exploitation activity and the critical unauthenticated impact of the vulnerabilities, organizations should prioritize remediation of SMA1000 appliances on an emergency basis. A Python proof-of-concept for CVE-2026-15409 is available here for exposure validation, and a Metasploit module for the chain is in development.Affected …

Vollständiger Originalartikel ↗

• Betroffenheit im eigenen Stack prüfen (CVE-2026-15409, CVE-2026-15410): Versionen/Komponenten abgleichen.
• Originalquelle / Hersteller-Advisory lesen: https://www.rapid7.com/blog/post/etr-rapid7-mdr-team-discovers-new-sonicwall-sma1000-zero-days-being-actively-exploited-cve-2026-15409-cve-2026-15410
• Priorität HOCH: laut CISA-KEV aktiv ausgenutzt – bevorzugt patchen.
• Verfügbaren Patch oder Workaround einspielen und dokumentieren.
• Erkennung: Logs und Indikatoren (IoCs) auf Ausnutzung prüfen.