CVE-2025-9640 (GCVE-0-2025-9640)

Vulnerability from cvelistv5 – Published: 2025-10-15 12:47 – Updated: 2026-09-01 12:08
VLAI
Title
Samba: vfs_streams_xattr uninitialized memory write possible
Summary
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.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-15 13:06 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1043 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Affected: 0 , < 4.21.9 (semver)
Affected: 4.22.0 , < 4.21.5 (semver)
Affected: 4.23.0 , < 4.23.2 (semver)
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Date Public
2025-10-15 12:45
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}



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