Secuno
ENNL
Book demo

CVE-2026-63298

Canonical Lxd remote code execution

9.9 CRITICALPublic exploitEPSS 0.69%
  1. Published12 Aug 2026

Description

An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying newline characters within the 'nvidia.driver.capabilities' or 'nvidia.require.*' configuration values, an attacker can manipulate the generated lxc.conf file. This flaw enables the attacker to execute arbitrary code on the host system with the privileges of the LXD daemon.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Canonical Lxd≥ 4.0.0 < 4.0.12 · ≥ 5.0.0 < 5.0.8 · ≥ 5.1 < 5.21.6 · ≥ 6.0 ≤ 6.9

Remediation

Fixed in
Canonical Lxd≥ 4.0.12

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-10911010.0
A flaw has been found in Wavlink WL-WN592AX6 250422. This issue affects the function…
CVE-2026-1091089.9
A security vulnerability has been detected in Wavlink WL-WN530BE1-A 251117. This…
CVE-2026-820968.8
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker…
CVE-2026-185298.7
IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 is…
CVE-2025-714299.8
GPT-SoVITS through 20250606v2pro contains an OS command injection vulnerability in…
CVE-2020-372798.1
easy-pdf-merge 0.1.0 through 0.2.6 contains an OS command injection vulnerability that…

Frequently asked

Is CVE-2026-63298 being actively exploited?

CVE-2026-63298 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.69%.

How severe is CVE-2026-63298?

CVE-2026-63298 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.69% probability of exploitation.

Which products are affected by CVE-2026-63298?

Affected products include Canonical Lxd.

How do I fix CVE-2026-63298?

Upgrade affected software to a fixed version, for example Canonical Lxd 4.0.12 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-63298 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.