Record status Published
Identifier year (not publication year) 2026
Source publication May 28, 2026
Source updated Oct 8, 2026
Imported by cveboard Oct 24, 2026
CNA source text (English) Samba: remote code execution in samr
A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the "check password script" is used with %u and the samba-dcerpcd service is started as a system service.
Scoped product and version facts Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Enterprise Linux 10
Vendor Red Hat
Product Red Hat Enterprise Linux 10
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 10 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.23.5-109.el10_2 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 10.0 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 10.0 Extended Update Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 10.0 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.21.3-114.el10_0.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Vendor Red Hat
Product Red Hat Enterprise Linux 7 Extended Lifecycle Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.10.16-26.el7_9.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Vendor Red Hat
Product Red Hat Enterprise Linux 7 Extended Lifecycle Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.10.16-26.el7_9.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.19.4-16.el8_10 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.19.4-16.el8_10 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.13.3-12.el8_4.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.13.3-12.el8_4.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.15.5-16.el8_6.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Vendor Red Hat
Product Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.15.5-16.el8_6.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Vendor Red Hat
Product Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.8 Telecommunications Update Service · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.17.5-7.el8_8.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.17.5-7.el8_8.1 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.23.5-10.el9_8 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.23.5-10.el9_8 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.17.5-105.el9_2.5 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.19.4-105.el9_4.4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.6 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 9.6 Extended Update Support
Platforms Unknown
Default status affected
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.6 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 0:4.21.3-14.el9_6.1 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.12
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.12
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-8
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.12 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 412.86.202608241157-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.13
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.13
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.13 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 413.92.202609080414-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.14
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.14
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.14 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 414.92.202608172040-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.15
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.15
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.15 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 415.92.202608180329-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.16
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.16
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.16 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 416.94.202608150307-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.17
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.17
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.17 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 417.94.202608250221-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.18
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.18
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.18 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 418.94.202608142238-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.19
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.19
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.19 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 4.19.9.6.202606241344-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.20
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.20
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.20 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 4.20.9.6.202606241928-0 unaffectedrpm * Unavailable None listed
Red Hat OpenShift Container Platform 4.21
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4.21
Platforms Unknown
Default status affected
Package openshift/ose-rhel-coreos-9
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat OpenShift Container Platform 4.21 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status) 4.21.9.6.202606241859-0 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 6
Vendor Red Hat
Product Red Hat Enterprise Linux 6
Platforms Unknown
Default status unknown
Package samba
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 6
Vendor Red Hat
Product Red Hat Enterprise Linux 6
Platforms Unknown
Default status unknown
Package samba4
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.