CVE-2023-42670
mediumpriority · track · 26EPSS 0.013 · 71 %ileDEEUNLRUUSEPSS · scored 2026-10-27
A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0031Kwetsbaarheden verholpen in Oracle JD EdwardsNL2026-01-21csaf · ncsc_nlNL
Oracle heeft kwetsbaarheden verholpen in Oracle JD Edwards EnterpriseOne Tools.
- WID-SEC-W-2023-2620Samba: Mehrere SchwachstellenDeutsch2023-10-10csaf · cert_bundDE
Ein entfernter anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen, Dateien zu manipulieren oder vertrauliche Informationen offenzulegen.
- WID-SEC-W-2024-0523SolarWinds Security Event Manager: Mehrere SchwachstellenDeutsch2024-02-29csaf · cert_bundDE
Ein entfernter, anonymer oder authentifizierter Angreifer kann mehrere Schwachstellen in SolarWinds Security Event Manager ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben und einen Denial-of-Service-Zustand zu verursachen.
- WID-SEC-W-2026-0169Oracle JD Edwards: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle JD Edwards ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (17)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2023-42670cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2241885cnnvd
- https://bugzilla.samba.org/show_bug.cgi?id=15473cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-42670/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUMVALLFFDFC53JZMUWA6HPD7HUGAP5I/cnnvd
- https://www.oracle.com/security-alerts/cpujan2026.htmlcnnvd
- https://www.samba.org/samba/security/CVE-2023-42670.htmlcnnvd
- https://access.redhat.com/security/cve/CVE-2023-42670enisa_euvd
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