What is CVE-2026-104044?

CVE-2026-104044 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under NULL Pointer Dereference. CVSS score: 6.2/10. Published 2026-10-06.

How severe is CVE-2026-104044?

Medium severity. CVSS v3 base score is 6.2 out of 10.

NULL pointer dereference in Red Hat Enterprise Linux 10

CVE-2026-104044

A flaw was found in sssd. A local attacker can trigger a Denial of Service (DoS) by sending a specially crafted Pluggable Authentication Module (PAM) request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an uninitialized pointer and crashes. This failure disrupts authentication services on the host.

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

access.redhat.com/security/cve/CVE-2026-104044 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-104044?: CVE-2026-104044 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under NULL Pointer Dereference. CVSS score: 6.2/10. Published 2026-10-06.
How severe is CVE-2026-104044?: Medium severity. CVSS v3 base score is 6.2 out of 10.