CVE-2026-12610
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.4
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS probability
- 0.12%
- CWE
- CWE-825
- Published
- 2026-06-30
- Last modified
- 2026-08-31
Weakness type
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