Red Hat Enterprise Linux (cifs-utils): Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit Administratorrechten
WID-SEC-2026-2125 · first 30.06.2026 · updated 19.10.2026 · CVSS 7,8
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in den cifs-utils von Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen.
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
- beliebigen Programmcode mit Administratorrechten auszuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Red Hat Enterprise Linux
- Fedora Linux
- Ubuntu Linux
- SUSE Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux <10
- Oracle Linux
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Red Hat Enterprise Linux 10
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)
- Red Hat Security Advisory RHSA-2026:32990 vom 2026-06-29 access.redhat.com
- Ubuntu Security Notice USN-8496-2 vom 2026-07-03 ubuntu.com
- Rocky Linux Security Advisory RLSA-2026:32990 vom 2026-07-05 errata.build.resf.org
- Ubuntu Security Notice USN-8496-1 vom 2026-07-02 ubuntu.com
- SUSE Security Update SUSE-SU-2026:2700-1 vom 2026-06-30 lists.suse.com
- SUSE Security Update SUSE-SU-2026:2699-1 vom 2026-06-30 lists.suse.com
- Fedora Security Advisory FEDORA-2026-90DBFF48CA vom 2026-07-07 bodhi.fedoraproject.org
- Ubuntu Security Notice USN-8496-3 vom 2026-07-13 ubuntu.com
- Red Hat Security Advisory RHSA-2026:39575 vom 2026-07-15 access.redhat.com
- Red Hat Security Advisory RHSA-2026:39576 vom 2026-07-15 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:39576 vom 2026-07-15 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-39575 vom 2026-07-15 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-39576 vom 2026-07-15 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-32990 vom 2026-07-22 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:39575 vom 2026-07-23 errata.build.resf.org
- SUSE Security Update SUSE-SU-2026:22888-1 vom 2026-07-27 lists.suse.com
- Red Hat Security Advisory RHSA-2026:44232 vom 2026-07-28 access.redhat.com
- Debian Security Advisory DSA-6567 vom 2026-10-16 security-tracker.debian.org
CVE: CVE-2026-12505
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.