What is CVE-2026-53230?

CVE-2026-53230 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.7/10. Published 2026-06-25.

How severe is CVE-2026-53230?

High severity. CVSS v3 base score is 8.7 out of 10.

Out-of-bounds Read in Linux

CVE-2026-53230

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list mlx5_query_nic_vport_mac_list() sizes its firmware command buffer using the PF's log_max_current_uc/mc_…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:H.

Affected products

Linux — versions e16aea2744abea612c27ee0eef606c6a6a8204de, 4.5, 0
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2026-53230?: CVE-2026-53230 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.7/10. Published 2026-06-25.
How severe is CVE-2026-53230?: High severity. CVSS v3 base score is 8.7 out of 10.