Critical 9.8
KEV-listed
CVE-2026-59310
Exploitation of VMware vCenter Flaw CVE-2026-59310 in Babuk Ransomware Campaign
Vendor / product: VMware vCenter Server
Event date: 2026-08-17
Public PoC: Yes
First tracked by RiskWire: 2026-09-04
CISA KEV catalog
Added to KEV
Federal remediation due
2026-08-21 (30 days overdue)
Ransomware campaign use
Unknown
CISA description
Broadcom VMware vCenter contains a path traversal vulnerability which could allow a threat actor with network access to vCenter to execute arbitrary code.
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.
Named threat actors
China-nexus actor
Sources & citations (8)
- VMware vCenter CVE-2026-59310: Babuk Hits 47 Nations tech-insider.org · 2026-09-05
- CISA: WatchGuard RCE flaw now exploited in ransomware attacks bleepingcomputer.com · 2026-09-10
- CISA: WatchGuard Firebox bug exploited in ransomware campaigns scmagazine.com · 2026-09-10
- CISA: Ransomware Now Exploits Critical VMware vCenter Bug tech-insider.org · 2026-09-15
- CISA: WatchGuard Firebox Bug Hits Ransomware List [2026] tech-insider.org · 2026-09-15
- CISA: Critical VMware RCE flaw now exploited by ransomware gangs bleepingcomputer.com · 2026-09-15
- Ransomware Groups Target Critical VMware vCenter Flaw petri.com · 2026-09-15
- Patched VMware vCenter bug targeted in ransomware campaigns scworld.com · 2026-09-15
References
See CVE-2026-59310 in context
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