What is CVE-2026-53396?

CVE-2026-53396 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2026-07-19.

How severe is CVE-2026-53396?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Linux

CVE-2026-53396

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posix_acl leak and ignored error in nfsd4_create_file nfsd4_create_file() has two bugs in its ACL handling: The return value of nfsd4_acl_to_attr() is silentl…

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

Affected products

Linux — versions 7ab96df840e60eb933abfe65fc5fe44e72f16dc0, 6.19, 0

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-53396?: CVE-2026-53396 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2026-07-19.
How severe is CVE-2026-53396?: High severity. CVSS v3 base score is 7.1 out of 10.