Red Hat Enterprise Linux (lrzsz): Mehrere Schwachstellen
WID-SEC-2026-3978 · first 15.10.2026 · updated 27.10.2026 · CVSS 7,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux (lrzsz) ausnutzen, um Dateien zu manipulieren oder beliebigen Programmcode mit Benutzerrechten auszuführen.
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
- Dateien zu manipulieren oder beliebigen Programmcode mit Benutzerrechten auszuführen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- RESF Rocky Linux
- Oracle Linux
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)
- Red Hat Security Advisory RHSA-2026:83525 vom 2026-10-14 access.redhat.com
- RedHat Customer Portal vom 2026-10-14 access.redhat.com
- RedHat Customer Portal vom 2026-10-14 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-83525 vom 2026-10-16 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:83525 vom 2026-10-16 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-86056 vom 2026-10-21 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:86056 vom 2026-10-22 errata.build.resf.org
- Amazon Linux Security Advisory ALAS2-2026-4031 vom 2026-10-25 alas.aws.amazon.com
- Red Hat Security Advisory RHSA-2026:89755 vom 2026-10-26 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-89755 vom 2026-10-27 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:89755 vom 2026-10-27 errata.build.resf.org
CVE: CVE-2026-105840, CVE-2026-105841
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.