CVE-2026-82636
Medium
Elevated severity or exploit probability.
CVSS base
7.9
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.9%
79.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-78
Published 2026-08-30 · modified 2026-09-08
Description
Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the "system" library function is used to process an error message that may have shell metacharacters. This occurs in core-admin-linux/file-copy-vm/qfile-dom0-agent.c.