Description
A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.
Affected products
samba: samba; redhat: enterprise linux
References5
- bugzilla.samba.org/show_bug.cgi?id=16085 Issue TrackingMitigationVendor Advisory
- www.samba.org/samba/security/CVE-2026-58224-advisory.html Mailing ListVendor Advisory
- access.redhat.com/errata/RHSA-2026:86618
- access.redhat.com/security/cve/CVE-2026-58224 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2502720 Issue TrackingThird Party Advisory
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 28 · as of 12 November 2026
- CWE
- CWE-353
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