CVE-2026-82636

7.9 highEPSS 1.9%

High (7.9). EPSS 1.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.9 high

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2026-08-30
Modified: 2026-09-08
Record from: the NVD, synced 2026-10-19

References

https://news.ycombinator.com/item?id=49496918
https://www.qubes-os.org/news/2026/08/29/qsb-118/

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