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Vulnerability Intelligence

CVE-2025-0620

MEDIUM6.6

Samba: smbd doesn't pick up group membership changes when re-authenticating an expired smb session

Published Jun 6, 2025

Modified 1 weeks ago

No fix available

Details

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.

References

WEBhttp://www.openwall.com/lists/oss-security/2025/06/03/8 WEBhttps://access.redhat.com/security/cve/CVE-2025-0620 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2370453 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-0620 WEBhttps://www.samba.org/samba/security/CVE-2025-0620.html

CVSS Analysis

CVSS v3.1

6.6

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

HighPR:H

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedJun 6, 2025

ModifiedJan 8, 2026

CVE-2025-0620 | Mondoo Vulnerability Intelligence