CVE-2021-3626

Windows version of Multipass unauthenticated localhost tcp control socket can perform mounts

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Published Oct 1, 2021 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Description

The Windows version of Multipass before 1.7.0 allowed any local process to connect to the localhost TCP control socket to perform mounts from the operating system to a guest, allowing for privilege escalation.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Canonical

Multipass

affected

Version	Status	Constraints
`unspecified`	affected	< 1.7.0

Configuration 1 [-]

AND

cpe:2.3:a:canonical:multipass:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-26929	The Windows version of Multipass before 1.7.0 allowed any local process to connect to the localhost TCP control socket to perform mounts from the operating system to a guest, allowing for privilege escalation.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.249% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/canonical/multipass/pull/2150

History

No history.

Subscriptions

Canonical Multipass

Microsoft Windows

Weaknesses

Sources

CVE record Updated: Sep 17, 2024, 3:23 AM

Status: PUBLISHED
Assigner: canonical
Published: Oct 1, 2021, 2:35 AM
Updated: Sep 17, 2024, 3:23 AM
Reserved: Jun 29, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:05 AM

Status: Modified
Published: Oct 1, 2021, 3:15 AM
Modified: Jun 17, 2026, 4:05 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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