CVE-2026-63909

A flaw was found in the ksmbd component of the Linux kernel. A transposed bounds check in the smbcheckpermdacl function can lead to a 2-byte heap out-of-bounds OOB read during Server Message Block SMB2 create operations. This vulnerability may allow a remote attacker to disclose sensitive...

CVE-2026-63909

In the Linux kernel, the following vulnerability has been resolved: ksmbd: OOB read regression in smbcheckpermdacl ACE-walk loops Commit d07b26f39246 "ksmbd: require minimum ACE size in smbcheckpermdacl" introduced a transposed bounds check: if offsetofstruct smbace, sid + acessize size offset 2...

CVE-2026-63909 ksmbd: OOB read regression in smb_check_perm_dacl() ACE-walk loops

In the Linux kernel, the following vulnerability has been resolved: ksmbd: OOB read regression in smbcheckpermdacl ACE-walk loops Commit d07b26f39246 "ksmbd: require minimum ACE size in smbcheckpermdacl" introduced a transposed bounds check: if offsetofstruct smbace, sid + acessize size offset 2...

CVE-2026-53390 ksmbd: fix out-of-bounds read in smb_check_perm_dacl()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds read in smbcheckpermdacl The permission-check ACE walk in smbcheckpermdacl validates the ACE header size and caps sid.numsubauth at SIDMAXSUBAUTHORITIES, but it never checks that ace-size is actually larg...

PT-2026-61095

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read exists in the ksmbd component. The smb check perm dacl function fails to verify if the ace-size is sufficient to contain the number of sub-authorities specified by...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011320)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011320 advisory. In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix reference count leak in smbcheckpermdacl The issue happens in a specific path in...

DEBIAN-CVE-2022-49366

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix reference count leak in smbcheckpermdacl The issue happens in a specific path in smbcheckpermdacl. When "id" and "uid" have the same value, the function simply jumps out of the loop without decrementing the reference...

Nmap NSE 6.01: smb-check-vulns

This VT has been deprecated and is therefore no longer functional. SPDX-FileCopyrightText: 2013 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Nmap NSE net: smb-check-vulns

This VT has been deprecated and is therefore no longer functional. SPDX-FileCopyrightText: 2011 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Nmap NSE: SMB Check Vulnerabilities

This script attempts to check the following vulnerabilities: - MS08-067, a Windows RPC vulnerability - Conficker, an infection by the Conficker worm - Unnamed regsvc DoS - SMBv2 exploit CVE-2009-3103 This is a wrapper on the Nmap Security Scanner's http://nmap.org smb-check-vulns.nse. OpenVAS...