SUSE-SU-2026:2071-1: critical: Security update for samba

SLE-UPDATES null at suse.de
Tue May 26 20:35:00 UTC 2026 

# 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

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