P4Verified

CVE-2026-63343: incus < 7.3.0

CVE-2026-63343. CVSS 3.1 base score 9.9 (CRITICAL, Vendor/CNA). EPSS 0.00479 (percentile 0.39811), scored 14-Oct-2026.

Affected technology

incus · < 7.3.0
lxc

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated Incus user can read or overwrite any file on the host as root via the instance metadata API. Vendor/CNA’s CVSS 3.1 assessment (base score 9.9/10) rates confidentiality, integrity and availability impact as high.

Published 15-Oct-2026 20:21 UTC

CWE: CWE-73
CCR priority: 39.7 /100 (P4)
CVSS 3.1: 9.9 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00479 · percentile 0.39811 · 2026-10-14
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-15 20:17:11.213245+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-63343.html