An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013442 advisory.

    An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-     bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010702 advisory.

    An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-     bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-     bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.
    (CVE-2022-47943)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-47943 advisory.

  - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-     bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.
    (CVE-2022-47943)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
309485	Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013442)	Nessus	Unity Linux Local Security Checks	Local	high
308815	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010702)	Nessus	Unity Linux Local Security Checks	Local	high
246266	Linux Distros Unpatched Vulnerability : CVE-2022-47943	Nessus	Misc.	Local	high
239841	TencentOS Server 4: kernel (TSSA-2024:0960)	Nessus	Tencent Local Security Checks	Local	critical
172868	CBL Mariner 2.0 Security Update: kernel (CVE-2022-47943)	Nessus	MarinerOS Local Security Checks	Local	high

Detections

Analytics

CVE-2022-47943

high

Tenable Plugins

high

high

high

critical

high