How severe is CVE-2023-34046?

CVE-2023-34046 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-34046 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34046?

CVE-2023-34046 affects Vmware Fusion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34046?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-34046 published?

CVE-2023-34046 was published on 2023-10-20 and last updated on 2026-06-17.

CVE-2023-34046

CVE-2023-34046 is a medium-severity vulnerability in Vmware Fusion with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Vmware Fusion
Published: 2023-10-20
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-34046?: 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.
How severe is CVE-2023-34046?: CVE-2023-34046 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-34046 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34046?: CVE-2023-34046 affects Vmware Fusion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34046?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-34046 published?: CVE-2023-34046 was published on 2023-10-20 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*

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