CVE-2020-3981 json
VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fus…
published 2020-10-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25246
- cvss
- 5.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.
Patch / fix
- vmware cloud_foundation 3.10.1, 4.1
- vmware fusion 11.5.6
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:P/I:N/A:N |
Affected products
- n/a VMware ESXi, Workstation, Fusion
Classification
- Weakness
- Technology feeds
References
-
vmware.com
/security/advisories/VMSA-2020-0023.html
patch, vendor-advisory
Sources
- CVE List CVE-2020-3981
- NVD CVE-2020-3981
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