FreeBSD Project FreeBSD OS: Mehrere Schwachstellen
WID-SEC-2026-2590 · first 30.07.2026 · updated 20.08.2026 · CVSS 8,4
What it is about
FreeBSD ist ein Open Source Betriebssystem aus der BSD Familie und gehört damit zu den Unix Derivaten. Ein Angreifer kann mehrere Schwachstellen in FreeBSD Project FreeBSD OS ausnutzen, um seine Privilegien zu erhöhen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
Under what conditions?
The BSI does not name any particular preconditions.
What can happen in the worst case
An attacker could use the vulnerability to
- seine Privilegien zu erhöhen
- Daten zu manipulieren oder vertrauliche Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- FreeBSD Project FreeBSD OS <15.1-STABLE
- FreeBSD Project FreeBSD OS <15.1-RELEASE-p2
- FreeBSD Project FreeBSD OS <15.0-RELEASE-p12
- FreeBSD Project FreeBSD OS <14.4-STABLE
- FreeBSD Project FreeBSD OS <14.4-RELEASE-p8
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-STABLE
- FreeBSD Project FreeBSD OS 15.1-RELEASE-p2
- FreeBSD Project FreeBSD OS 15.0-RELEASE-p12
- FreeBSD Project FreeBSD OS 14.4-STABLE
- FreeBSD Project FreeBSD OS 14.4-RELEASE-p8
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-26:50.kqueue vom 2026-07-29 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:51.ktimer vom 2026-07-29 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:52.if_wg vom 2026-07-29 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:53.ktrace vom 2026-07-29 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:54.sysvsem vom 2026-07-29 security.FreeBSD.org
- FreeBSD Security Advisory FreeBSD-SA-26:55.elf vom 2026-07-29 security.FreeBSD.org
CVE: CVE-2026-58083, CVE-2026-58087, CVE-2026-58088, CVE-2026-58084, CVE-2026-58085, CVE-2026-58086
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.