SUSE-SU-2026:22045-1: critical: Security update for samba

Tue Jun 9 20:32:22 UTC 2026

# Security update for samba

Announcement ID: SUSE-SU-2026:22045-1  
Release Date: 2026-06-05T08:34:04Z  
Rating: critical  
References:

  * bsc#1249058
  * bsc#1255755
  * bsc#1257200
  * bsc#1259050
  * bsc#1259667
  * bsc#1261158
  * bsc#1261159
  * bsc#1261160
  * bsc#1261161
  * bsc#1261163
  * bsc#1261188

Cross-References:

  * CVE-2026-1933
  * CVE-2026-2340
  * CVE-2026-3012
  * CVE-2026-3238
  * CVE-2026-4408
  * CVE-2026-4480

CVSS scores:

  * CVE-2026-1933 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-1933 ( SUSE ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-1933 ( NVD ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-1933 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  * 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-2026-2340 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-3012 ( SUSE ):  7.6
    CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-3012 ( SUSE ):  8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-3012 ( NVD ):  6.8 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-3012 ( NVD ):  8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/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-2026-3238 ( NVD ):  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-2026-4408 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-4408 ( NVD ):  9.0 CVSS:3.1/AV:N/AC:H/PR:N/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 ):  9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-4480 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

  * SUSE Linux Micro 6.2

An update that solves six vulnerabilities and has five fixes can now be
installed.

## Description:

This update for samba fixes the following issues

Security issues:

  * CVE-2026-1933: Missing access check on reparse point operations
    (bsc#1261188).
  * CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
  * CVE-2026-3012: group policy certificate enrollment uses http: // without
    validation (bsc#1261159).
  * 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).

Changes for samba:

  * network:samba:STABLE/samba: "use-kerberos=desired" broken / Dolphin requires
    login for Samba shares (bsc#1255755).
  * Samba service start times out (SElinux relabel takes too long)
    (bsc#1259050).
  * samba-ad-dc-libs packages is missing a DLZ plugin for bind 9.20
    (bsc#1249058).
  * VFS_Snapper does not show previous file versions in subdirectories.
    (bsc#1259667).
  * Updated to 4.22.9

## 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:

  * SUSE Linux Micro 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-890=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * samba-client-libs-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1
    * samba-debugsource-4.22.9+git.506.22c03ce0781-160000.1.1
    * libldb2-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1
    * libldb2-4.22.9+git.506.22c03ce0781-160000.1.1
    * samba-client-libs-4.22.9+git.506.22c03ce0781-160000.1.1
    * samba-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-1933.html
  * https://www.suse.com/security/cve/CVE-2026-2340.html
  * https://www.suse.com/security/cve/CVE-2026-3012.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=1249058
  * https://bugzilla.suse.com/show_bug.cgi?id=1255755
  * https://bugzilla.suse.com/show_bug.cgi?id=1257200
  * https://bugzilla.suse.com/show_bug.cgi?id=1259050
  * https://bugzilla.suse.com/show_bug.cgi?id=1259667
  * https://bugzilla.suse.com/show_bug.cgi?id=1261158
  * https://bugzilla.suse.com/show_bug.cgi?id=1261159
  * 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
  * https://bugzilla.suse.com/show_bug.cgi?id=1261188

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