HOMEVULNERABILITIESCVE-2026-12411
CRITICAL

CVE-2026-12411

CWE-639Published: June 26, 2026· Updated: Jul 2, 2026

9.6
CVSS v3.1
EPSS:0.11%probability of exploitation in 30 daysPercentile:1.4th

Official Description

Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled.

NVD Source

Technical Analysis

CVE-2026-12411 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low 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), with a CVSS base score of 9.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected Vendors & Products

Canonical1 product
lxd
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (3)

Quick Facts

CVE IDCVE-2026-12411
CVSS Score9.6 / 10
SeverityCRITICAL
WeaknessCWE-639
CISA KEVNo
EPSS (30d)0.11%
Affected1 vendor
PublishedJun 26, 2026

Related CVEs (CWE-639)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-12411 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.