Samba: remote code execution in samr
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- openshift/ose-rhel-coreos-8
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- openshift/ose-rhel-coreos-9
Version range not reported
- samba
Version range not reported
- samba4
Version range not reported
References 24
access.redhat.com
- errata/RHSA-2026:22644
- errata/RHSA-2026:22963
- errata/RHSA-2026:25049
- errata/RHSA-2026:25979
- errata/RHSA-2026:28053
- errata/RHSA-2026:28054
- errata/RHSA-2026:28055
- errata/RHSA-2026:28056
- errata/RHSA-2026:28057
- errata/RHSA-2026:28058
- errata/RHSA-2026:28132
- errata/RHSA-2026:29799
- errata/RHSA-2026:29833
- errata/RHSA-2026:29863
- errata/RHSA-2026:56786
- errata/RHSA-2026:56853
- errata/RHSA-2026:56911
- errata/RHSA-2026:57483
- errata/RHSA-2026:59831
- errata/RHSA-2026:60019
- errata/RHSA-2026:65839
- security/cve/CVE-2026-4408