What is CVE-2021-3626?

CVE-2021-3626 is a high-severity vulnerability in Canonical Multipass, classified under External Control of File Name or Path. CVSS score: 8.8/10. Published 2021-10-01.

How severe is CVE-2021-3626?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-3626 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Canonical Multipass

CVE-2021-3626

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.

EPSS: 0.000 (15.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Canonical Multipass — versions unspecified

Weakness classification (CWE)

Public proof-of-concept exploits

ExpLangcn/FuYao-Go

References

github.com/canonical/multipass/pull/2150 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-3626?: CVE-2021-3626 is a high-severity vulnerability in Canonical Multipass, classified under External Control of File Name or Path. CVSS score: 8.8/10. Published 2021-10-01.
How severe is CVE-2021-3626?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-3626 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.