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Vulnerabilities

Vulnerability · CVE-2025-0620

A flaw was found in Samba.

Published Jun 6, 2025 · catalog updated Aug 31, 2026 · Arch Linux

Check this week

CVE-2025-0620 is not in CISA KEV. FIRST estimates a 75.00% chance of exploitation in the next 30 days. Check whether you run Arch Linux.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
75.00%
Remediation
Advisory link
Affected products
vendor redhat

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor redhatversion unspecified

How to fix CVE-2025-0620

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-0620 is not in CISA KEV. FIRST estimates a 75.00% chance of exploitation in the next 30 days. Check whether you run Arch Linux.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 75.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 31, 2026 · EUVD

    Updated

    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.

  2. Oct 17, 2026 · Arch Linux Security

    Detected

    CVE-2025-0620 is named on the public Arch Linux Security page.

Sources

  • Arch Linux SecurityVendor advisoryCVE-2025-0620

    CVE-2025-0620 is named on the public Arch Linux Security page.

    security.archlinux.org
  • CVE.orgVulnerability recordCVE-2025-0620

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-17307

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.