Security update for samba

Announcement ID:	SUSE-SU-2026:2071-1
Release Date:	2026-05-26T12:34:36Z
Rating:	critical
References:	bsc#1252963 bsc#1261158 bsc#1261160 bsc#1261161 bsc#1261163
Cross-References:	CVE-2026-2340 CVE-2026-3238 CVE-2026-4408 CVE-2026-4480
CVSS scores:	CVE-2026-2340 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-2340 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2026-3238 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-4408 ( SUSE ): 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-4408 ( SUSE ): 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-4480 ( SUSE ): 10.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-4480 ( SUSE ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2026-4480 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.3 SUSE Enterprise Storage 7.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2 SUSE Linux Enterprise Server 15 SP3

An update that solves four vulnerabilities and has one security fix can now be installed.

Description:

This update for samba fixes the following issues

• CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
• CVE-2026-3238: unauthenticated udp packet crashes AD DC nbt server (bsc#1261160).
• CVE-2026-4408: Remote Code Execution in SAMR (bsc#1261163).
• CVE-2026-4480: Unauthenticated Remote Code Execution (bsc#1261161).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.3
  zypper in -t patch SUSE-2026-2071=1
• SUSE Linux Enterprise Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-2071=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-2071=1
• SUSE Enterprise Storage 7.1
  zypper in -t patch SUSE-Storage-7.1-2026-2071=1

Package List:

• openSUSE Leap 15.3 (x86_64)
  • samba-client-libs-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-devel-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-32bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-32bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
  • libsamba-policy-devel-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-tool-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-python3-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • ctdb-pcp-pmda-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-devel-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • ctdb-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ldb-ldap-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-test-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-dsdb-modules-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-dsdb-modules-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-gpupdate-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debugsource-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • ctdb-pcp-pmda-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • ctdb-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-python3-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ldb-ldap-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy-python3-devel-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-test-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• openSUSE Leap 15.3 (aarch64 x86_64)
  • samba-ceph-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ceph-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• openSUSE Leap 15.3 (noarch)
  • samba-doc-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• openSUSE Leap 15.3 (aarch64_ilp32)
  • samba-client-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-devel-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-libs-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-64bit-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ad-dc-libs-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • libsamba-policy0-python3-64bit-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
  • samba-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debugsource-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
  • samba-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debugsource-4.15.13+git.780.d2f53cbcded-150300.3.103.1
• SUSE Enterprise Storage 7.1 (aarch64 x86_64)
  • ctdb-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ceph-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • ctdb-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-client-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-ceph-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-debugsource-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-winbind-4.15.13+git.780.d2f53cbcded-150300.3.103.1
  • samba-libs-python3-debuginfo-4.15.13+git.780.d2f53cbcded-150300.3.103.1

References:

• https://www.suse.com/security/cve/CVE-2026-2340.html
• https://www.suse.com/security/cve/CVE-2026-3238.html
• https://www.suse.com/security/cve/CVE-2026-4408.html
• https://www.suse.com/security/cve/CVE-2026-4480.html
• https://bugzilla.suse.com/show_bug.cgi?id=1252963
• https://bugzilla.suse.com/show_bug.cgi?id=1261158
• https://bugzilla.suse.com/show_bug.cgi?id=1261160
• https://bugzilla.suse.com/show_bug.cgi?id=1261161
• https://bugzilla.suse.com/show_bug.cgi?id=1261163