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CVE-2025-0620

Date: June 6, 2025

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.

Severity Score

Related Resources (8)

https://www.samba.org/samba/security/CVE-2025-0620.html
https://seclists.org/oss-sec/2025/q2/203
https://bugzilla.redhat.com/show_bug.cgi?id=2370453
https://security-tracker.debian.org/tracker/CVE-2025-0620
http://www.openwall.com/lists/oss-security/2025/06/03/8
https://nvd.nist.gov/vuln/detail/CVE-2025-0620
https://access.redhat.com/security/cve/CVE-2025-0620
https://www.mend.io/vulnerability-database/CVE-2025-0620

Severity Score

Weakness Type (CWE)

Files or Directories Accessible to External Parties

CWE-552

Authentication Bypass by Primary Weakness

CWE-305

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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