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SUSE Samba Critical Remote Code Exec Issues 2026-22045-1

suse
Calendar Grey June 9, 2026
Dist Suse Esm H88
Critical Samba update for SUSE addresses multiple issues including remote code execution threats and installation instructions.
An update that solves six vulnerabilities and has five fixes can now be installed.

Summary

## 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).

Topics%20covered

Topics Covered

security advisory critical SuSE remote code execution samba UDP attack

References

* bsc#1249058

* bsc#1255755

* bsc#1257200

* bsc#1259050

* bsc#1259667

* bsc#1261158

* bsc#1261159

* bsc#1261160

* bsc#1261161

* bsc#1261163

* bsc#1261188

Cross-

* 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

Severity
critical
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory critical SuSE remote code execution samba UDP attack

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