CVE record · CVE-2023-42670

Samba: ad dc busy rpc multiple listener dos

CVSS 6.5 MediumEPSS 0.013 · 70th percentile

Published by the CVE Program (CNA: redhat) at 3 Nov 2023, 07:58 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
Vendor	Product	Versions
Not given	Not given Package name: samba https://github.com/samba-team/samba	affected 4.16.0 to before 4.17.12 semver affected 4.18.0 to before 4.18.8 semver affected 4.19.0 Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 6 Package name: samba https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 6 Package name: samba4 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 7 Package name: samba https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: samba https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 9 Package name: samba https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Storage 3 Package name: samba https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2023-42670
CNA: redhat
Weakness (CWE): CWE-400
Tags: Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Storage 3
Denial of service
Published: 3 Nov 2023
Updated: 7 Nov 2026

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

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.013, the 70th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

3 Nov 2023, 07:58 UTC Confirmed by the CVE List
3 Nov 2023, 08:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/security/cve/CVE-2023-42670 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2241885 issue-trackingredhat
bugzilla.samba.org/show_bug.cgi?id=15473
www.samba.org/samba/security/CVE-2023-42670.html

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.