What is CVE-2026-53000?

CVE-2026-53000 is a high-severity vulnerability in Linux, classified under Release of Invalid Pointer or Reference. CVSS score: 7.8/10. Published 2026-06-24.

How severe is CVE-2026-53000?

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

Vulnerability in Linux

CVE-2026-53000

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the origin…

EPSS: 0.001 (3.0th 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 e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9, 5.14, 0
Linux Linux_kernel
Redhat Enterprise_linux — versions 9.0, 10.0

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)

Frequently asked questions

What is CVE-2026-53000?: CVE-2026-53000 is a high-severity vulnerability in Linux, classified under Release of Invalid Pointer or Reference. CVSS score: 7.8/10. Published 2026-06-24.
How severe is CVE-2026-53000?: High severity. CVSS v3 base score is 7.8 out of 10.