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MIT Kerberos: Schwachstelle ermöglicht nicht spezifizierten Angriff

WID-SEC-2026-1900 · first 12.06.2026 · updated 01.09.2026 · CVSS 5,0

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What it is about

Kerberos ist ein verteilter Netzwerkdienst zur Authentifizierung. MIT Kerberos ist die freie Implementierung des "Kerberos network authentication protocol", des Massachusetts Institute of Technology (MIT). Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in MIT Kerberos ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Under what conditions?

Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.

What can happen in the worst case

An attacker could use the vulnerability to

  • einen nicht näher spezifizierten Angriff durchzuführen

Am I affected?

Affected according to the BSI:

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • SUSE openSUSE
  • MIT Kerberos <1.22.3
  • Ubuntu Linux
  • Dell Secure Connect Gateway <5.36.00.16

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • MIT Kerberos 1.22.3
  • Dell Secure Connect Gateway 5.36.00.16

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

CVE: CVE-2026-11850

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.

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