Vulnerability · Published Oct 1, 2021 · Assigned by canonical
CVE-2021-3626Windows version of Multipass unauthenticated localhost tcp control socket can perform mounts
High 8.8
In plain English
A high-severity improper access control in Multipass from Canonical. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.2%top 83.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 (as reported)
Weakness: CWE-73, CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/canonical/multipass/pull/2150 x_refsource_MISC