Red Hat Enterprise Linux (pcs): Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-1112 · first 15.04.2026 · updated 03.08.2026 · CVSS 5,3
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (pcs) ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
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
- Ubuntu Linux
- SUSE Linux
- Oracle Linux
- RESF Rocky Linux
- IBM DB2
- Red Hat Enterprise Linux <8
- Red Hat Enterprise Linux 9.2
- Red Hat Enterprise Linux 9.4
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 8
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-2026:8093 vom 2026-04-14 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-8093 vom 2026-04-15 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:8093 vom 2026-04-16 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:10184 vom 2026-04-23 access.redhat.com
- Red Hat Security Advisory RHSA-2026:11495 vom 2026-04-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:11494 vom 2026-04-29 access.redhat.com
- Ubuntu Security Notice USN-8198-2 vom 2026-04-28 ubuntu.com
- Ubuntu Security Notice USN-8198-1 vom 2026-04-28 ubuntu.com
- Red Hat Security Advisory RHSA-2026:11493 vom 2026-04-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:11454 vom 2026-04-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:13641 vom 2026-05-05 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:13670 vom 2026-05-06 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-13670 vom 2026-05-05 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-13641 vom 2026-05-06 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:13641 vom 2026-05-06 errata.build.resf.org
- IBM Security Bulletin 7273312 vom 2026-05-18 www.ibm.com
- Red Hat Security Advisory RHSA-2026:19034 vom 2026-05-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:19189 vom 2026-05-19 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:19189 vom 2026-05-21 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:20577 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20572 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20573 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20810 vom 2026-05-26 access.redhat.com
- SUSE Security Update SUSE-SU-2026:21993-1 vom 2026-06-05 lists.suse.com
- Red Hat Security Advisory RHSA-2026:24342 vom 2026-06-08 access.redhat.com
and 4 more sources in the original advisory
CVE: CVE-2026-31958
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.