CVE-2026-104030CWE-125

CVE-2026-104030

Medium · published October 6, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.6
In the wild
Unconfirmed
What it is

A flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end of the provided memory buffer, causing the process to crash and disrupting authentication services.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00118 · 1.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-06T00:17Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-104030 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2479429 · [email protected]
EPSS history
Timeline
  • 07 OCT 03:39Z
    EPSS moved — → 0%
    epss
  • 05 OCT 19:07Z
    Sssd: sssd: denial of service via out-of-bounds read during passkey parsing
    cvelistv5