CVE-2025-0620

Summary

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 Software

Weaknesses

• CWE-552: Files or Directories Accessible to External Parties

ADP Enrichment

CVE Program Container

Additional References

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

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://access.redhat.com/security/cve/CVE-2025-0620
• https://bugzilla.redhat.com/show_bug.cgi?id=2370453
• https://www.samba.org/samba/security/CVE-2025-0620.html

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