CVE-2026-59346

criticalpriority · track · 10EPSS 0.004 · 35 %ileexploit · PoCDERUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.41% (35th) EPSS

CVSS 9.3 · critical

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

fstec_bdu · cert_bund · zdi

EPSS · scored 2026-10-26

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)

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.3

v3.19.3criticalAV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.3criticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · security@vmware.comexploitability 2.5 · impact 6

v3.18.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USCWE-190US

exploits (1)

Public proof-of-concept and weaponised exploit code.

0xCyberstan/CVE-2026-59346-POCPoC for CVE-2026-59346 - 32-bit integer overflow in VMware's VMXNET3 TSO segmentation path, guest-to-host crash.PoC · poc_in_github

affected products (4)

Products and version ranges known to be affected.

VMware Fusion< 26H1u1cert_bundDE
VMware Workstation< 26H1u1cert_bundDE
Broadcom Inc. VMWare Workstation≤ 26H1u1fstec_bduRU
Broadcom Inc. VMware Fusion≤ 26H1u1fstec_bduRU

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3169VMware Fusion und Workstation: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2026-09-02csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in VMware Workstation und VMware Fusion ausnutzen, um beliebigen Programmcode auszuführen.
ZDI-26-647ZDI advisory ZDI-26-6472026-09-09vendor · zdiUS

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

fstec_bdu cert_bund zdi NVD CVE.org MITRE

published 2026-10-07modified 2026-10-07

references (1) nvd

External citations — patches, advisories, analysis.

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288

scry

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