CVE-2025-9640
Samba: vfs_streams_xattr uninitialized memory write possible
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Red Hat
commercial·US
ООО «Ред Софт»
commercial·RUaka red soft
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
АО «НТЦ ИТ РОСА»
commercial·RU
АО «ИВК»
commercial·RUaka ivk
Samba Team
oss-project·AUaka samba
and 7 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
1 technique Collection
References
https://access.redhat.com/security/cve/CVE-2025-9640
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2391698
bugzilla.redhat.com
https://www.samba.org/samba/history/security.html
samba.org
and 13 more references View all →
News mentions
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