Buffer overflow in VMware Cloud Foundation
CVE-2020-3971
VMware ESXi (6.7 before ESXi670-201904101-SG and 6.5 before ESXi650-201907101-SG), Workstation (15.x before 15.0.2), and Fusion (11.x before 11.0.2) contain a heap overflow vulnerability in the vmxnet3 virtual network adapter. A malicious actor with local access to a virtual machine with a vmxnet3 network adapter present may be able to read privileged information contained in physical memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (26.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- VMware Cloud Foundation
- VMware Esxi — versions 6.5, 6.7
- VMware Fusion — versions 11.x before 11.0.2
- VMware Esxi — versions 6.7 before ESXi670-201904101-SG, 6.5 before ESXi650-201907101-SG
- VMware Workstation — versions 15.x before 15.0.2
Weakness classification (CWE)
References
- www.vmware.com/security/advisories/VMSA-2020-0015.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3971?
- CVE-2020-3971 is a medium-severity vulnerability in VMware Cloud Foundation, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2020-06-25.
- How severe is CVE-2020-3971?
- Medium severity. CVSS v3 base score is 5.5 out of 10.