CVE-2026-59346
ZDI-26-647: VMware Workstation VMXNET3 TSO Segmentation Integer Overflow Local Privilege Escalation Vulnerability
Published Sep 9, 2026
This vulnerability allows local attackers to escalate privileges on affected installations of VMware Workstation. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-59346.
Timeline
Detection, updates, and resolution for this record.
Sep 9, 2026 · Catalog
Detected
This vulnerability allows local attackers to escalate privileges on affected installations of VMware Workstation. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-59346.
Sources
- CVE.orgCVE-2026-59346
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-59346
30-day exploitation probability 0.3%
first.org - Zero Day InitiativeZDI-26-647
This vulnerability allows local attackers to escalate privileges on affected installations of VMware Workstation. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-59346.
zerodayinitiative.com