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CVE-2020-3982

HIGHCVSS 7.7/10EPSS 0.83%

Last modified

CVE-2020-3982 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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 write 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 vulnerability to crash the virtual machine's vmx process or corrupt hypervisor's memory heap.. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

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 write 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 vulnerability to crash the virtual machine's vmx process or corrupt hypervisor's memory heap.

Metrics

CVSS 3.1
7.7/10

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H

EPSS Probability
0.83%

52.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
VmwareEsxi7.0.0
VmwareEsxi6.7
VmwareEsxi6.5
VmwareCloud Foundation>= 3.0, < 3.10.1
VmwareCloud Foundation>= 4.0, < 4.1
VmwareWorkstation>= 15.0, <= 15.5.6
VmwareWorkstation Player>= 15.0, <= 15.5.6
VmwareFusion>= 11.0, < 11.5.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3982?
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 write 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 vulnerability to crash the virtual machine's vmx process or corrupt hypervisor's memory heap.
How severe is CVE-2020-3982?
CVE-2020-3982 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3982?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3982?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST