FreeBSD Project FreeBSD OS: Mehrere Schwachstellen
WID-SEC-2026-1871 · first 10.06.2026 · updated 13.08.2026 · CVSS 7,8
What it is about
FreeBSD ist ein Open Source Betriebssystem aus der BSD Familie und gehört damit zu den Unix Derivaten. Ein lokaler Angreifer kann mehrere Schwachstellen in FreeBSD Project FreeBSD OS ausnutzen, um erweiterte Rechte zu erlangen – möglicherweise sogar Administratorrechte –, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder andere, nicht näher definierte Angriffe durchzuführen.
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
- erweiterte Rechte zu erlangen – möglicherweise sogar Administratorrechte –
- Sicherheitsmaßnahmen zu umgehen
- vertrauliche Informationen offenzulegen
- Daten zu manipulieren oder andere, nicht näher definierte Angriffe durchzuführen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- SUSE openSUSE
- RESF Rocky Linux
- FreeBSD Project FreeBSD OS <15.1
- FreeBSD Project FreeBSD OS <15.0
- FreeBSD Project FreeBSD OS <14.4
- FreeBSD Project FreeBSD OS <14.3
- Oracle Linux
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- FreeBSD Project FreeBSD OS 15.1
- FreeBSD Project FreeBSD OS 15.0
- FreeBSD Project FreeBSD OS 14.4
- FreeBSD Project FreeBSD OS 14.3
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)
- FreeBSD Security Advisory FreeBSD-SA-26:25.thr vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:26.ktls vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:27.sound vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:28.capsicum vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:29.ip6_multicast vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:30.linux vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:32.elf vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:34.vt vom 2026-06-09 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:36.ldns vom 2026-06-09 security.FreeBSD.org
- Writeup "Bumsrakete" for FreeBSD-SA-26:26.ktls bumsrake.de
- openSUSE Security Update OPENSUSE-SU-2026:21093-1 vom 2026-06-30 lists.opensuse.org
- Red Hat Security Advisory RHSA-2026:49520 vom 2026-08-03 access.redhat.com
- Red Hat Security Advisory RHSA-2026:49836 vom 2026-08-04 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-49836 vom 2026-08-05 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-49520 vom 2026-08-05 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:49520 vom 2026-08-04 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:50108 vom 2026-08-04 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-50108 vom 2026-08-05 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:50108 vom 2026-08-06 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:49836 vom 2026-08-06 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:53402 vom 2026-08-11 access.redhat.com
- Red Hat Security Advisory RHSA-2026:54244 vom 2026-08-12 access.redhat.com
- Red Hat Security Advisory RHSA-2026:54377 vom 2026-08-12 access.redhat.com
- Red Hat Security Advisory RHSA-2026:54254 vom 2026-08-12 access.redhat.com
CVE: CVE-2026-10846, CVE-2026-45256, CVE-2026-45257, CVE-2026-45258, CVE-2026-45259, CVE-2026-49412, CVE-2026-49413, CVE-2026-49414, CVE-2026-49416, CVE-2026-49417
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.