Privilege escalation in lxd

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU118768

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-64507

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper privilege management when using custom storage volumes. Any LXD user in an environment where an unprivileged user may have root access to a container with an attached custom storage volume that has the "security.shifted" property set to "true" as well as access to the host as an unprivileged user can escalate their privileges to root.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

lxd: 4.0.0 - 6.5

CPE2.3

• cpe:2.3:a:linux_containers:lxd:4.24:*:*:*:*:*:*:*
• cpe:2.3:a:linux_containers:lxd:5.21.4:*:*:*:*:*:*:*
• cpe:2.3:a:linux_containers:lxd:6.5:*:*:*:*:*:*:*

External links

https://github.com/canonical/lxd/security/advisories/GHSA-3g2j-vm47-x4mj

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.