CVE-2020-8872

Hypervisor memory disclosure via xHCI buffer over-read

Published Mar 23, 2020 · Updated Aug 4, 2024

Out-of-bounds read in Parallels Desktop 15.1.1-47117 allows local users to disclose hypervisor memory through the xHCI component. The xHCI component fails to validate guest-supplied data before reading beyond the end of an allocated buffer. Exploitation requires high-privileged code in a guest; the disclosure can support a separate exploit chain that executes in the hypervisor context.

CVSS severity6.0
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Parallels Desktop 15.1.1-47117 allows local users to disclose hypervisor memory through the xHCI component. The xHCI component fails to validate guest-supplied data before reading beyond the end of an allocated buffer. Exploitation requires high-privileged code in a guest; the disclosure can support a separate exploit chain that executes in the hypervisor context.

The record

CVE
CVE-2020-8872
Published
Mar 23, 2020
Updated
Aug 4, 2024
Vendor
Parallels
Product
Parallels Desktop
Classifications
CWE-125
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.1.1-47117

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Parallels · Parallels Desktopversion=15.1.1-47117

Published CVSS scores

6.0Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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