CVE-2025-0620 MEDIUM

CVE-2025-0620: Samba: smbd doesn't pick up group membership changes when re-authenticating an expired smb session

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-552 · Files accessible externally
Published June 6, 2025
Last update March 18, 2026
View on NVD All CVEs

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 6, 2025 CVE published
March 18, 2026 Record updated