CVE Database›CVE-2025-68806

CVE-2025-68806

kernel: ksmbd: Information disclosure via buffer validation error in Extended Attributes

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · January 13, 2026

Updated · August 21, 2026

Description

A flaw was found in ksmbd in the Linux kernel. The smb2_set_ea function, responsible for handling Extended Attributes (EA), contained a buffer validation error. This error occurred because the size of the null terminating character was incorrectly omitted during length calculations for EA Name. A remote attacker could exploit this vulnerability to potentially disclose sensitive information.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-193 · Off-by-one Error