Red Hat Hardened Images RPMs (libxslt): Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-2026-1287 · first 28.04.2026 · updated 02.09.2026 · CVSS 7,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann mehrere Schwachstellen in Red Hat Hardened Images RPMs 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. Exploitable remotely according to the BSI.
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:
- Red Hat Enterprise Linux
- Oracle Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux Hardened Images RPMs
- Dell ECS 3.8.1.0-3.8.1.7
- Dell Secure Connect Gateway <5.36.00.16
- IBM QRadar SIEM <7.6.0 FP2
- IBM QRadar SIEM <7.5.0 UP16
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Dell Secure Connect Gateway 5.36.00.16
- IBM QRadar SIEM 7.6.0 FP2
- IBM QRadar SIEM 7.5.0 UP16
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-2026:11015 vom 2026-04-27 access.redhat.com
- Dell Security Advisory www.dell.com
- Rocky Linux Security Advisory RLSA-2026:26355 vom 2026-06-17 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:26355 vom 2026-06-16 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-26355 vom 2026-06-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:28584 vom 2026-06-24 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:28243 vom 2026-06-24 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:29807 vom 2026-06-25 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-28243 vom 2026-06-25 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:29814 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:29811 vom 2026-06-25 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:28584 vom 2026-06-25 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:29976 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:29975 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:30847 vom 2026-06-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:33313 vom 2026-06-30 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-28584 vom 2026-07-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:44481 vom 2026-07-23 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48151 vom 2026-07-29 access.redhat.com
- Dell Security Advisory DSA-2026-386 vom 2026-09-01 www.dell.com
- IBM Security Bulletin 7286011 vom 2026-09-02 www.ibm.com
CVE: CVE-2025-10911, CVE-2025-11731, CVE-2025-7424
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.