What is the CVSS score of CVE-2025-39943?

CVE-2025-39943 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Linux are affected by CVE-2025-39943?

CVE-2025-39943 presents moderate security risk, a out-of-bounds read vulnerability rated CVSS 7.1. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-39943?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Linux CVE-2025-39943

EUVD-2025-32382 HIGH

Out-of-bounds Read (CWE-125)

2025-10-04 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Buffer Overflow Information Disclosure Linux

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

SUSE

HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

Patch released

Apr 06, 2026 - 13:28 nvd

Patch available

EUVD ID Assigned

Mar 13, 2026 - 19:56 euvd

EUVD-2025-32382

CVE Published

Oct 04, 2025 - 08:15 nvd

HIGH 7.1

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

If data_offset and data_length of smb_direct_data_transfer struct are invalid, out of bounds issue could happen. This patch validate data_offset and data_length field in recv_done.

Analysis

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

If data_offset and data_length of smb_direct_data_transfer struct are invalid, out of bounds issue could happen. This patch validate data_offset and data_length field in recv_done.

Same weakness CWE-125 – Out-of-bounds Read

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8.8

CVE-2012-1889 HIGH POC

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CVE-2017-11882 HIGH POC

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CVE-2010-3333 HIGH POC

7.8

Vendor StatusVendor

SUSE

Severity: High

Product	Status
SUSE Linux Enterprise Desktop 15 SP7	Fixed
SUSE Linux Enterprise Desktop 15 SP7	Fixed
SUSE Linux Enterprise High Availability Extension 15 SP7	Fixed
SUSE Linux Enterprise High Availability Extension 15 SP7	Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7	Fixed

CVE-2025-39943 vulnerability details – vuln.today

Back

Linux CVE-2025-39943

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Same weakness CWE-125 – Out-of-bounds Read

Same technique Buffer Overflow

Vendor StatusVendor

SUSE

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External POC / Exploit Code