CVE-2025-0620

MEDIUM EPSS 44.0%
Published Jun 6, 20251y ago · Modified Jun 17, 20261w ago
4.9 CVSS 3.1
Medium
Find Similar
Published Jun 6, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
4.9
Exploitability
1.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
44.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-552

Affected Products 2

VendorProductVersionRange
sambasamba*≥4.21.0  –  <4.21.6
sambasamba*≥4.22.0  –  <4.22.2

References 4

  • openwall.com http://www.openwall.com/lists/oss-security/2025/06/03/8
    Mailing ListThird Party Advisory
  • access.redhat.com https://access.redhat.com/security/cve/CVE-2025-0620
    Third Party Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2370453
    Issue TrackingThird Party Advisory
  • samba.org https://www.samba.org/samba/security/CVE-2025-0620.html
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.