CVE-2020-3960
CVE-2020-3960 is a high-severity vulnerability in Vmware Fusion with a CVSS 3.x base score of 8.4. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v2: 3.6
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Vmware Fusion
- Published:
- Last modified:
Description
VMware ESXi (6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.5), and Fusion (11.x before 11.5.5) contain an out-of-bounds read vulnerability in NVMe functionality. A malicious actor with local non-administrative access to a virtual machine with a virtual NVMe controller present may be able to read privileged information contained in physical memory.
Frequently asked questions
- What is CVE-2020-3960?
- VMware ESXi (6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.5), and Fusion (11.x before 11.5.5) contain an out-of-bounds read vulnerability in NVMe functionality. A malicious actor with local non-administrative access to a virtual machine with a virtual NVMe controller present may be able to read privileged information contained in physical memory.
- How severe is CVE-2020-3960?
- CVE-2020-3960 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2020-3960 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-3960?
- CVE-2020-3960 primarily affects Vmware Fusion. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-3960?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-3960 published?
- CVE-2020-3960 was published on 2021-09-15 and last updated on 2026-06-17.
References
Affected products (23)
- cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:-:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201701001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201703001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201703002:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201704001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201710001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201712001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201803001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201806001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201808001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201810001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201810002:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201811001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201901001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201903001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201905001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201908001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.5:650-201910001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.7:-:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.7:670-201911001:*:*:*:*:*:*
- cpe:2.3:o:vmware:vsphere_esxi:6.7:670-202004001:*:*:*:*:*:*
More vulnerabilities in Vmware Fusion
- CVE-2017-4901 — Critical (CVSS 9.9): The drag-and-drop (DnD) function in VMware Workstation 12.x before version 12.5.4 and Fusion 8.x before version 8.5.5…
- CVE-2019-5521 — Critical (CVSS 9.6): VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201903001), Workstation (15.x before 15.0.3 and…
- CVE-2024-22267 — Critical (CVSS 9.3): VMware Workstation and Fusion contain a use-after-free vulnerability in the vbluetooth device. A malicious actor with…
- CVE-2024-22253 — Critical (CVSS 9.3): VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the UHCI USB controller. A malicious…
- CVE-2024-22252 — Critical (CVSS 9.3): VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the XHCI USB controller. A malicious…
- CVE-2012-3288 — Critical (CVSS 9.3): VMware Workstation 7.x before 7.1.6 and 8.x before 8.0.4, VMware Player 3.x before 3.1.6 and 4.x before 4.0.4, VMware…
All CVEs affecting Vmware Fusion →
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