What is CVE-2026-63795?

CVE-2026-63795 is a critical-severity vulnerability in Linux. CVSS score: 10.0/10. Published 2026-07-19.

How severe is CVE-2026-63795?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Linux

CVE-2026-63795

In the Linux kernel, the following vulnerability has been resolved: 9p: avoid putting oldfid in p9_client_walk() error path When p9_client_walk() is called with clone set to false, fid aliases oldfid. If the walk subsequently fails after…

EPSS: 0.002 (7.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Linux — versions b48dbb998d70b7f48c2ec0a15c3cf47136808e4e, 6.0, 0

References

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

Frequently asked questions

What is CVE-2026-63795?: CVE-2026-63795 is a critical-severity vulnerability in Linux. CVSS score: 10.0/10. Published 2026-07-19.
How severe is CVE-2026-63795?: Critical severity. CVSS v3 base score is 10.0 out of 10.