CVE Database›Document archive›CVE-2023-54250

CVE-2023-54250

kernel: ksmbd: Out-of-bounds access via crafted SMB requests

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Severity

Important

Red Hat Product Security

8.2

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · August 21, 2026

Description

A flaw was found in ksmbd (kernel Server Message Block daemon). Insufficient boundary checks in the decode_preauth_ctxt() function can lead to an out-of-bounds access. A remote attacker could exploit this vulnerability by sending a specially crafted SMB request, potentially leading to information disclosure or a denial of service.

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 · 8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CWE-805 · Buffer Access with Incorrect Length Value