Vulnerability in Linux

CVE-2025-68806

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

EPSS: 0.002 (6.5th 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:H/I:N/A:N.

Affected products

  • Linux — versions 6.18.3, 6.19, 6.12.64

References

Frequently asked questions

What is CVE-2025-68806?
CVE-2025-68806 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-01-13.
How severe is CVE-2025-68806?
High severity. CVSS v3 base score is 7.5 out of 10.