CVE-2023-34046

VMware Fusion TOCTOU local privilege escalation vulnerability

State: Published
Severity: 6.7 Medium
Published: Oct 20, 2023
Updated: Mar 7, 2025
Reserved: May 25, 2023

Description

VMware Fusion(13.x prior to 13.5) contains a TOCTOU (Time-of-check Time-of-use) vulnerability that occurs during installation for the first time (the user needs to drag or copy the application to a folder from the '.dmg' volume) or when installing an upgrade. A malicious actor with local non-administrative user privileges may exploit this vulnerability to escalate privileges to root on the system where Fusion is installed or being installed for the first time.

Scores

CVSS	Score	Vector	Source
3.1	6.7 Medium	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H	vmware

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
FusionVMware	13.x to before 13.5Affected

References

https://www.vmware.com/security/advisories/VMSA-2023-0022.html

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