Vulnerability · Published Nov 10, 2025 · Assigned by GitHub_M
CVE-2025-64507Incus vulnerable to local privilege escalation through custom storage volumes
High 8.6
In plain English
A high-severity privilege mismanagement in incus from lxc. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Incus is a system container and virtual machine manager. An issue in versions prior to 6.0.6 and 6.19.0 affects any Incus 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. The most common case for this would be systems using `incus-user` with the less privileged `incus` group to provide unprivileged users with an isolated restricted access to Incus. Such users may be able to create a custom storage volume with the necessary property (depending on kernel and filesystem support) and can then write a setuid binary from within the container which can be executed as an unprivileged user on the host to gain root privileges. A patch for this issue is expected in versions 6.0.6 and 6.19.0. As a workaround, permissions can be manually restricted until a patched version of Incus is deployed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | incus | 6.0.6-r0 | ALPINE-CVE-2025-64507 |
| Alpine:v3.24 | incus | 6.0.6-r0 | ALPINE-CVE-2025-64507 |
| Debian:13 | incus | 6.0.4-2+deb13u2 | DEBIAN-CVE-2025-64507 |
| Debian:13 | incus | 6.0.4-2+deb13u2 | DSA-6051-1 |
| Debian:14 | incus | 6.0.5-4 | DEBIAN-CVE-2025-64507 |
| Debian:12 | lxd | no fix listed | DEBIAN-CVE-2025-64507 |
| Debian:12 | lxd | 5.0.2-5+deb12u2 | DSA-6057-1 |
| Debian:13 | lxd | 5.0.2+git20231211.1364ae4-9+deb13u2 | DEBIAN-CVE-2025-64507 |
| Go | github.com/lxc/incus | no fix listed | GO-2025-4115 |
| Go | github.com/lxc/incus/v6 | no fix listed | GO-2025-4115 |
| Go | github.com/lxc/incus/v6 | 6.19.0 | GHSA-56mx-8g9f-5crf |
| Ubuntu:25.10 | incus | no fix listed | UBUNTU-CVE-2025-64507 |
Affected products (as reported)
Weakness: CWE-269 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://github.com/lxc/incus/security/advisories/GHSA-56mx-8g9f-5crf x_refsource_CONFIRM
- https://github.com/lxc/incus/issues/2641 x_refsource_MISC
- https://github.com/lxc/incus/pull/2642 x_refsource_MISC