CVE-2026-41702: CWE-367 Time-of-check time-of-use (TOCTOU) race condition in VMware Fusion
VMware Fusion contains a TOCTOU (Time-of-check Time-of-use) vulnerability that occurs during an operation performed by a SETUID binary. 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.
AI Analysis
Technical Summary
VMware Fusion 2025H2 contains a TOCTOU race condition vulnerability (CWE-367) in a SETUID binary operation. This flaw allows a local attacker with limited privileges to exploit the timing window between checking and using a resource, potentially escalating their privileges to root on the affected system. The vulnerability has a CVSS 3.1 score of 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. No patch or official remediation guidance has been published by VMware as of the current information.
Potential Impact
Successful exploitation of this vulnerability allows a local non-administrative user to gain root privileges on the system running VMware Fusion 2025H2. This results in full system compromise, affecting confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the VMware advisory for current remediation guidance. Until a fix is available, restrict local user access to trusted individuals and monitor for unusual local activity related to VMware Fusion. Avoid running untrusted code on systems with VMware Fusion installed.
CVE-2026-41702: CWE-367 Time-of-check time-of-use (TOCTOU) race condition in VMware Fusion
Description
VMware Fusion contains a TOCTOU (Time-of-check Time-of-use) vulnerability that occurs during an operation performed by a SETUID binary. 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.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
VMware Fusion 2025H2 contains a TOCTOU race condition vulnerability (CWE-367) in a SETUID binary operation. This flaw allows a local attacker with limited privileges to exploit the timing window between checking and using a resource, potentially escalating their privileges to root on the affected system. The vulnerability has a CVSS 3.1 score of 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. No patch or official remediation guidance has been published by VMware as of the current information.
Potential Impact
Successful exploitation of this vulnerability allows a local non-administrative user to gain root privileges on the system running VMware Fusion 2025H2. This results in full system compromise, affecting confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the VMware advisory for current remediation guidance. Until a fix is available, restrict local user access to trusted individuals and monitor for unusual local activity related to VMware Fusion. Avoid running untrusted code on systems with VMware Fusion installed.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-04-22T06:21:22.982Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a06c286ec166c07b0d7190d
Added to database: 5/15/2026, 6:51:50 AM
Last enriched: 5/15/2026, 7:06:53 AM
Last updated: 6/9/2026, 9:00:04 PM
Views: 137
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