CVE-2025-0620 - Files or Directories Accessible to External Parties

Severity

65%

Complexity

6%

Confidentiality

98%

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.

CVSS 3.1 Base Score 6.6. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS 3.1 Base Score 4.9. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

Overview

First reported 3 months ago

2025-06-06 14:15:00

Last updated 1 month ago

2025-08-13 15:12:00

Affected Software

Samba Samba

References

http://www.openwall.com/lists/oss-security/2025/06/03/8

https://access.redhat.com/security/cve/CVE-2025-0620

RHBZ#2370453

https://www.samba.org/samba/security/CVE-2025-0620.html

http://www.openwall.com/lists/oss-security/2025/06/03/8

Mailing List, Third Party Advisory

https://access.redhat.com/security/cve/CVE-2025-0620

Third Party Advisory

RHBZ#2370453

Issue Tracking, Third Party Advisory

https://www.samba.org/samba/security/CVE-2025-0620.html

Vendor Advisory

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