Red Hat Enterprise Linux (FreeRDP): Mehrere Schwachstellen
WID-SEC-2026-2644 · first 19.05.2021 · updated 05.08.2026 · CVSS 6,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen und um Informationen offenzulegen.
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
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux 8
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 Adivisory RHSA-2021:1849 vom 2021-05-18 access.redhat.com
- Amazon Linux Security Advisory ALAS2-2026-3840 vom 2026-08-05 alas.aws.amazon.com
CVE: CVE-2020-11095, CVE-2020-11096, CVE-2020-11097, CVE-2020-11098, CVE-2020-11099, CVE-2020-15103, CVE-2020-4030, CVE-2020-4033
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.