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CVE-2026-4408

קריטית 9.8

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
9.8 (CRITICAL) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — סבירות ניצול
3% (אחוזון 100) נכון ל-6/8/2026
CWE
CWE-78

מוצרים מושפעים

redhat: openshift container platform; samba: samba; redhat: enterprise linux

קישורים