Samba: Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-2376 · first 16.07.2026 · updated 01.09.2026 · CVSS 6,1
What it is about
Samba ist eine Open Source Software Suite, die Druck- und Dateidienste für SMB/CIFS Clients implementiert. Ein lokaler Angreifer kann eine Schwachstelle in Samba ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- SUSE Linux
- Ubuntu Linux
- Open Source Samba
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- GitHub Advisory Database vom 2026-07-15 github.com
- Red Hat Bugtracker 2499991 vom 2026-07-15 bugzilla.redhat.com
- EU Vulnerability Database vom 2026-07-15 euvd.enisa.europa.eu
- SUSE Security Update SUSE-SU-2026:3362-1 vom 2026-07-28 lists.suse.com
- SUSE Security Update SUSE-SU-2026:3367-1 vom 2026-07-28 lists.suse.com
- Ubuntu Security Notice USN-8621-1 vom 2026-07-28 ubuntu.com
- SUSE Security Update SUSE-SU-2026:3365-1 vom 2026-07-28 lists.suse.com
- SUSE Security Update SUSE-SU-2026:3364-1 vom 2026-07-28 lists.suse.com
- SUSE Security Update SUSE-SU-2026:3366-1 vom 2026-07-28 lists.suse.com
- SUSE Security Update SUSE-SU-2026:3363-1 vom 2026-07-28 lists.suse.com
- SUSE Security Update SUSE-SU-2026:22977-1 vom 2026-08-03 lists.suse.com
- SUSE Security Update SUSE-SU-2026:23003-1 vom 2026-08-12 lists.suse.com
- SUSE Security Update SUSE-SU-2026:23152-1 vom 2026-08-14 lists.suse.com
- SUSE Security Update SUSE-SU-2026:23129-1 vom 2026-08-14 lists.suse.com
- Amazon Linux Security Advisory ALAS2-2026-3886 vom 2026-09-01 alas.aws.amazon.com
CVE: CVE-2026-15779
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.