CVE-2025-11561

Published: Oct 9, 2025

Modified: Mar 19, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

A flaw was found in the integration of Active Directory and the System Security Services Daemon (SSSD) on Linux systems. In default configurations, the Kerberos local authentication plugin (sssd_krb5_localauth_plugin) is enabled, but a fallback to the an2ln plugin is possible. This fallback allows an attacker with permission to modify certain AD attributes (such as userPrincipalName or samAccountName) to impersonate privileged users, potentially resulting in unauthorized access or privilege escalation on domain-joined Linux hosts.

Vendor	Product	Versions
Unknown	sssd	affected `0 - <= 2.11.1`
Red Hat	Red Hat Enterprise Linux 10	unaffected `0:2.10.2-3.el10_0.3 - < *`
Red Hat	Red Hat Enterprise Linux 10	unaffected `0:2.11.1-2.el10_1.1 - < *`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected `0:1.16.5-10.el7_9.17 - < *`
Red Hat	Red Hat Enterprise Linux 8	unaffected `0:2.9.4-5.el8_10.3 - < *`
Red Hat	Red Hat Enterprise Linux 8	unaffected `0:2.9.4-5.el8_10.3 - < *`
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected `0:2.2.3-20.el8_2.3 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected `0:2.4.0-9.el8_4.4 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected `0:2.4.0-9.el8_4.4 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected `0:2.6.2-4.el8_6.4 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected `0:2.6.2-4.el8_6.4 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected `0:2.6.2-4.el8_6.4 - < *`
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	unaffected `0:2.8.2-4.el8_8.3 - < *`
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	unaffected `0:2.8.2-4.el8_8.3 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:2.9.7-4.el9_7.1 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:2.9.7-4.el9_7.1 - < *`
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected `0:2.6.2-4.el9_0.4 - < *`
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected `0:2.8.2-5.el9_2.6 - < *`
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected `0:2.9.4-6.el9_4.4 - < *`
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	unaffected `0:2.9.6-4.el9_6.3 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.12	unaffected `412.86.202601061735-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.13	unaffected `413.92.202601130113-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.14	unaffected `414.92.202511122212-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.15	unaffected `415.92.202512100122-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.16	unaffected `416.94.202512030118-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.17	unaffected `417.94.202511260612-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.18	unaffected `418.94.202511170715-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.19	unaffected `4.19.9.6.202511252219-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.20	unaffected `4.20.9.6.202511252309-0 - < *`
Red Hat	Red Hat Ceph Storage 7	unaffected `sha256:6b79ed10423d954d21dd24c9cb1cf507f6e02c2942ace7fa30cf7af2ffaeb631 - < *`
Red Hat	Red Hat Ceph Storage 8	unaffected `sha256:04a48d31f7336e0d5958eed1ddb1a117148f791baccef4e6e08943181e6794c8 - < *`
Red Hat	Red Hat Enterprise Linux 6	All versions