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CVE Vulnerability Details :
CVE-2025-0620
PUBLISHED
More InfoOfficial Page
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
View Known Exploited Vulnerability (KEV) details
Published At-06 Jun, 2025 | 13:10
Updated At-08 Jan, 2026 | 03:03
Rejected At-
▼CVE Numbering Authority (CNA)
Samba: smbd doesn't pick up group membership changes when re-authenticating an expired smb session

A flaw was found in Samba. The smbd service daemon does not pick up group membership changes when re-authenticating an expired SMB session. This issue can expose file shares until clients disconnect and then connect again.

Affected Products
Collection URL
https://www.samba.org/
Package Name
samba
Default Status
unaffected
Versions
Affected
  • From 4.21.0 before 4.21.6 (semver)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba
CPEs
  • cpe:/o:redhat:enterprise_linux:10
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba4
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba
CPEs
  • cpe:/o:redhat:enterprise_linux:8
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
samba
CPEs
  • cpe:/o:redhat:enterprise_linux:9
Default Status
affected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat OpenShift Container Platform 4
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
rhcos
CPEs
  • cpe:/a:redhat:openshift:4
Default Status
unaffected
Problem Types
TypeCWE IDDescription
CWECWE-552Files or Directories Accessible to External Parties
Type: CWE
CWE ID: CWE-552
Description: Files or Directories Accessible to External Parties
Metrics
VersionBase scoreBase severityVector
3.14.9MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Metrics Other Info
Red Hat severity rating
value:
Moderate
namespace:
https://access.redhat.com/security/updates/classification/
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Reported to Red Hat.2025-06-05 16:13:11
Made public.2024-06-03 00:00:00
Event: Reported to Red Hat.
Date: 2025-06-05 16:13:11
Event: Made public.
Date: 2024-06-03 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://access.redhat.com/security/cve/CVE-2025-0620
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2370453
issue-tracking
x_refsource_REDHAT
https://www.samba.org/samba/security/CVE-2025-0620.html
N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2025-0620
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2370453
Resource:
issue-tracking
x_refsource_REDHAT
Hyperlink: https://www.samba.org/samba/security/CVE-2025-0620.html
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2025/06/03/8
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/06/03/8
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found