What is CVE-2026-6245?

CVE-2026-6245 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Buffer Access with Incorrect Length Value. CVSS score: 5.5/10. Published 2026-04-15.

How severe is CVE-2026-6245?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-6245

A flaw was found in the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-termi…

EPSS: 0.000 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-805 — Buffer Access with Incorrect Length Value

References

access.redhat.com/security/cve/CVE-2026-6245 (vdb-entry, x_refsource_REDHAT)
RHBZ#2457954 (issue-tracking, x_refsource_REDHAT)

Frequently asked questions

What is CVE-2026-6245?: CVE-2026-6245 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Buffer Access with Incorrect Length Value. CVSS score: 5.5/10. Published 2026-04-15.
How severe is CVE-2026-6245?: Medium severity. CVSS v3 base score is 5.5 out of 10.