CVE-2026-58224

EUVD-2026-58669
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.3%
Affected Products (NVD)
VendorProductVersion
sambasamba
𝑥
≤ 4.2.0
redhatenterprise_linux
6.0
redhatenterprise_linux
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
samba
bookworm
vulnerable
bookworm (security)
vulnerable
forky
2:4.24.7+dfsg-1
fixed
sid
2:4.24.7+dfsg-1
fixed
trixie
2:4.22.11+dfsg-0+deb13u1
fixed
trixie (security)
2:4.22.10+dfsg-0+deb13u2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
samba
bionic
needs-triage
focal
needs-triage
jammy
Fixed 2:4.15.13+dfsg-0ubuntu1.13
released
noble
Fixed 2:4.19.5+dfsg-4ubuntu9.7
released
resolute
Fixed 2:4.23.6+dfsg-1ubuntu2.2
released
trusty
needs-triage
xenial
needs-triage
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
ctdb
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
ctdb-tests
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
libsmbclient
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
libsmbclient-devel
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
libwbclient
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
libwbclient-devel
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-client
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-client-libs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-common
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-common-libs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-common-tools
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-dc
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-dc-libs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-debuginfo
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-devel
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-krb5-printing
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-libs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-pidl
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-python
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-python-test
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-test
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-test-libs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-vfs-glusterfs
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-winbind
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-winbind-clients
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-winbind-krb5-locator
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed
samba-winbind-modules
Amazon Linux 2
0:4.10.16-24.amzn2.0.9
fixed