What is CVE-2026-53067?

CVE-2026-53067 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-06-24.

How severe is CVE-2026-53067?

High severity. CVSS v3 base score is 7.8 out of 10.

Double Free in Linux

CVE-2026-53067

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc pci_epf_alloc_doorbell() stores the allocated doorbell message array in epf->db_msg/epf->num_db befo…

Vulnerability class: Double Free

EPSS: 0.001 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 1c3b002c6bf684b445a7107609979bca5f21bc03, 6.17, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-415 — Double Free

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-53067?: CVE-2026-53067 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-06-24.
How severe is CVE-2026-53067?: High severity. CVSS v3 base score is 7.8 out of 10.