CVE-2025-0620

Published: Jun 6, 2025Modified: Jun 30, 2026

4.9

Vector

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

Exploitability: 1.2 / Impact: 3.6

Source: NVD (Secondary)

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.

Affected (2)

Products: Samba: Samba

Samba

1 product

Samba

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Samba Samba	From 4.21.0 to 4.21.6
Samba Samba	From 4.22.0 to 4.22.2

Related CWEs

CWE-552

Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

References (4)

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 TrackingThird 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 ListThird Party Advisory

Timeline

No history available yet.