CVE•Published 2026-06-30•Modified 2026-08-31•0 articles on news•4 live references•NVD data

CVE-2026-12610Fedoraproject · Sssd

Vulnerability data via NVD (ingested)

CVSS v3.1

6.4

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 98% of all CVEs

Weaknesses (CWE)

CWE-825Expired Pointer Dereference

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.

Timeline

Published 2026-06-30

Modified 2026-08-31

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-12610

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Fedoraproject Sssd"

All exposed Fedoraproject Sssd instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Sssd"

HTTP body or banner mentions "Sssd" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-12610