CVE-2025-11561: Red Hat Ceph Storage 7

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

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.

Affected products

  • Red Hat Red Hat Ceph Storage 7: before 7 (fixed in 7)
  • Red Hat Red Hat Ceph Storage 8: before 8 (fixed in 8)
  • Red Hat Red Hat Enterprise Linux 10: before 0:2.10.2-3.el10_0.3 (fixed in 0:2.10.2-3.el10_0.3); before 0:2.11.1-2.el10_1.1 (fixed in 0:2.11.1-2.el10_1.1)
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support: before 0:1.16.5-10.el7_9.17 (fixed in 0:1.16.5-10.el7_9.17)
  • Red Hat Red Hat Enterprise Linux 8: before 0:2.9.4-5.el8_10.3 (fixed in 0:2.9.4-5.el8_10.3)
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support: before 0:2.2.3-20.el8_2.3 (fixed in 0:2.2.3-20.el8_2.3)
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: before 0:2.4.0-9.el8_4.4 (fixed in 0:2.4.0-9.el8_4.4)
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: before 0:2.4.0-9.el8_4.4 (fixed in 0:2.4.0-9.el8_4.4)
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: before 0:2.6.2-4.el8_6.4 (fixed in 0:2.6.2-4.el8_6.4)
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service: before 0:2.6.2-4.el8_6.4 (fixed in 0:2.6.2-4.el8_6.4)
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions: before 0:2.6.2-4.el8_6.4 (fixed in 0:2.6.2-4.el8_6.4)
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service: before 0:2.8.2-4.el8_8.3 (fixed in 0:2.8.2-4.el8_8.3)
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions: before 0:2.8.2-4.el8_8.3 (fixed in 0:2.8.2-4.el8_8.3)
  • Red Hat Red Hat Enterprise Linux 9: before 0:2.9.7-4.el9_7.1 (fixed in 0:2.9.7-4.el9_7.1)
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions: before 0:2.6.2-4.el9_0.4 (fixed in 0:2.6.2-4.el9_0.4)
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions: before 0:2.8.2-5.el9_2.6 (fixed in 0:2.8.2-5.el9_2.6)
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support: before 0:2.9.4-6.el9_4.4 (fixed in 0:2.9.4-6.el9_4.4)
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support: before 0:2.9.6-4.el9_6.3 (fixed in 0:2.9.6-4.el9_6.3)
  • Red Hat Red Hat Openshift Container Platform 4
  • Red Hat Red Hat Openshift Container Platform 4.12: before 412.86.202601061735-0 (fixed in 412.86.202601061735-0)
  • Red Hat Red Hat Openshift Container Platform 4.13: before 413.92.202601130113-0 (fixed in 413.92.202601130113-0)
  • Red Hat Red Hat Openshift Container Platform 4.14: before 414.92.202511122212-0 (fixed in 414.92.202511122212-0)
  • Red Hat Red Hat Openshift Container Platform 4.15: before 415.92.202512100122-0 (fixed in 415.92.202512100122-0)
  • Red Hat Red Hat Openshift Container Platform 4.16: before 416.94.202512030118-0 (fixed in 416.94.202512030118-0)
  • and 4 more

Published 2025-10-09. Last modified 2026-08-31.