CVE-2025-9640

Oct. 15, 2025, 1:16 p.m.

4.3
Medium

Description

A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability.

Product(s) Impacted

Vendor Product Versions
Samba
  • Samba
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-908
Use of Uninitialized Resource
The product uses or accesses a resource that has not been initialized.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a samba samba / / / / / / / /

References

https://access.redhat.com/security/cve/CVE-2025-9640
https://bugzilla.redhat.com/show_bug.cgi?id=2391698
https://www.samba.org/samba/history/security.html

Tags

secalert@redhat.com
CWE-908
2025-10-15
CVE-2025-9640

CVSS Score

4.3 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: NONE
  • Availability Impact: NONE

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

    View Vector String

Timeline

Published: Oct. 15, 2025, 1:16 p.m.
Last Modified: Oct. 15, 2025, 1:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secalert@redhat.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.