What is CVE-2026-53026?

CVE-2026-53026 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-06-24.

How severe is CVE-2026-53026?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Linux

CVE-2026-53026

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg In nfsd4_add_rdaccess_to_wrdeleg, if fp->fi_fds[O_RDONLY] is already set by another thread, __nfs…

EPSS: 0.004 (35.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions c07dc84ed67c5a182273171639bacbbb87c12175, 8072e34e1387d03102b788677d491e2bcceef6f5, 6.18.4
Linux Linux_kernel — versions 6.19

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-2026-53026?: CVE-2026-53026 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-06-24.
How severe is CVE-2026-53026?: High severity. CVSS v3 base score is 7.5 out of 10.