CVE-2026-12610
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
23/100
Published: 2026-06-30
Modified: 2026-11-10
First seen: 2026-11-04
Status: active
Attack Surface
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
High
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | sssd | - |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux | 10.0 |
References & Advisories (4)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT