Is CVE-2026-9640 actively exploited?

No active exploitation of CVE-2026-9640 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9640 be exploited remotely?

Yes. CVE-2026-9640 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9640?

CVE-2026-9640 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2026-9640

HIGH

CVE-2026-9640

CWE-863Published: June 26, 2026· Updated: Jul 2, 2026

7.2

CVSS v3.1

EPSS:0.33%probability of exploitation in 30 daysPercentile:24.7th

Official Description

A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.

NVD Source

Technical Analysis

CVE-2026-9640 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.