What is CVE-2026-52906?

CVE-2026-52906 is a high-severity vulnerability in Linux. CVSS score: 7.7/10. Published 2026-06-09.

How severe is CVE-2026-52906?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Linux

CVE-2026-52906

In the Linux kernel, the following vulnerability has been resolved: 9p: fix access mode flags being ORed instead of replaced Since commit 1f3e4142c0eb ("9p: convert to the new mount API"), v9fs_apply_options() applies parsed mount flags…

EPSS: 0.001 (2.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Linux — versions 1f3e4142c0eb178089ea0cbc97506a061470ad27, 6.19, 0
Linux Linux_kernel

References

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

Frequently asked questions

What is CVE-2026-52906?: CVE-2026-52906 is a high-severity vulnerability in Linux. CVSS score: 7.7/10. Published 2026-06-09.
How severe is CVE-2026-52906?: High severity. CVSS v3 base score is 7.7 out of 10.