CVE-2025-0620

6.6 MEDIUM
Published: June 06, 2025 Modified: November 18, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-0620
Source: secalert@redhat.com
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2370453
Source: secalert@redhat.com
Issue Tracking Third Party Advisory
https://www.samba.org/samba/security/CVE-2025-0620.html
Source: secalert@redhat.com
Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/06/03/8
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.6 / 10.0
EPSS (Exploit Probability)
0.1%
19th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

samba