Prolific ransomware group behind SonicWall zero-day attacks
INC ransomware group actively exploits SonicWall zero-days for data theft and encryption
INC ransomware, a prolific RaaS operation, has emerged as the primary threat actor exploiting a pair of SonicWall zero-days (CVE-2026-15409 and CVE-2026-15410) disclosed in July, effectively chaining both vulnerabilities for full access and extortion. The group has claimed multiple new victims globally across government and private sectors. This follows a pattern of ransomware groups specifically targeting SonicWall products, with 10 of 17 SonicWall CVEs since late 2021 attributed to ransomware campaigns.
AI summary of the linked source. Not reviewed by an editor. How this works
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The lesson from this incident
Full lessonINC ransomware exploited two chained SonicWall zero-day vulnerabilities to gain full access to victim environments across government and private sectors, demonstrating how unpatched network edge devices remain a primary ransomware entry point. The fact that 10 of 17 SonicWall CVEs since late 2021 have been tied to ransomware campaigns reveals a deliberate, sustained targeting strategy against these devices. Zero-day exploitation leaves defenders with little reaction time, making proactive network segmentation and compensating controls critical when patches are unavailable. Organizations relying on perimeter appliances without defense-in-depth strategies are especially exposed when a single device is compromised.
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Indicators of Compromise
Extracted by AI from the linked source. Not reviewed by an editor. How this works
- cve — CVE-2026-15409
- cve — CVE-2026-15410
- malware — INC ransomware