CVE-2025-39943
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-04-06

Assigner: kernel.org

Description
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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-10-04
Last Modified
2026-04-06
Generated
2026-05-06
AI Q&A
2025-10-04
EPSS Evaluated
2026-05-05
NVD
CVE-2025-39943
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel's ksmbd component involves improper validation of the data_offset and data_length fields in the smb_direct_data_transfer structure. If these fields are invalid, it can lead to an out-of-bounds issue, potentially causing memory corruption or crashes. The patch fixes this by validating these fields during the recv_done process.


How can this vulnerability impact me? :

If exploited, this vulnerability could cause out-of-bounds memory access, which may lead to system instability, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service on affected Linux systems using ksmbd.


Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70
EPSS Chart