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CVE record · CVE-2023-34966

Samba: infinite loop in mdssvc rpc service for spotlight

CVSS 7.5 HighCriticalEPSS 0.62 · 99th percentile

Critical, because:

  • CVSS score 7.5 (7.0 or more) and EPSS 0.62 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: redhat) at 20 Jul 2023, 14:56 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Red Hat Red Hat Enterprise Linux 8 Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.18.6-1.el8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 8 Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.18.6-1.el8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.15.5-15.el8_6 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.17.5-5.el8_8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.18.6-100.el9 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.18.6-100.el9 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.17.5-105.el9_2 to before * rpm
Other versions: affected
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Package name: samba https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:4.15.5-15.el8_6 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 6 Package name: samba https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unknown
Red Hat Red Hat Enterprise Linux 6 Package name: samba4 https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unknown
Red Hat Red Hat Enterprise Linux 7 Package name: samba https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unknown
Red Hat Red Hat Storage 3 Package name: samba https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unknown
Identifiers
CVE-2023-34966
CNA
redhat
Weakness (CWE)
CWE-835
Tags
Published
20 Jul 2023
Updated
20 Nov 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.62, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 20 Jul 2023. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.