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CVE-2026-59346

See advisory•CRITICAL · CVSS 9.3•No exploitation reported

What is CVE-2026-59346?

VMware Workstation and Fusion contain an integer-overflow vulnerability. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Affected versions: - VMware Workstation: 25H2, 26H1 (fixed in 26H1u1) - VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)

CVSS9.3 CNA/ADP score via NVD 3.1

SeverityCRITICAL

ExploitationNo exploitation reported

EPSS<1% · P36

Triage statusNo Known Exploit

ActionPatch within 48 hours

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

CWECWE-190

NVD published2026-10-07

NVD last modified2026-10-07

Timeline

2026-09-06First covered in a defend.network daily briefing
2026-10-07Published to the U.S. National Vulnerability Database (NVD)

Affected product

See advisory

References

Referenced in our briefings & reports

VMware, Magento, JetBrains hit by active exploits; credentials compromised (2026-09-06)

Related vulnerabilities

CVE-2026-58882 – Google Android (same weakness: CWE-190)
CVE-2026-97229 – GitLab Community Edition And Enterprise Edition (same weakness: CWE-190)
CVE-2026-64531 (same weakness: CWE-190)
CVE-2026-46331 – Linux Kernel (same weakness: CWE-190)
CVE-2025-48595 – Android Framework (same weakness: CWE-190)

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.