RHSA-2026:2821

Advisory lineage Upstream: 3 Downstream: 0
Published: 18 Feb 2026, 10:10
Last modified:23 Apr 2026, 10:09

Vulnerability Summary

Overall Risk (default)
medium
29/100
CVSS Score
7.3 HIGH
3.1 (osv_red_hat)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Feb 2026, 10:10
Published
Vulnerability first disclosed
23 Apr 2026, 10:09
Last Modified
Vulnerability information updated

Description

Red Hat Security Advisory: kernel-rt security update

CVSS Metrics

  • v3.1•HIGH•Score: 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Affected Systems

  • redhat•kernel-rt

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-core

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-core

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-debuginfo

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-devel

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-kvm

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-modules

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debug-modules-extra

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debuginfo

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-debuginfo-common-x86_64

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-devel

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-kvm

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-modules

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

  • redhat•kernel-rt-modules-extra

    < 0:4.18.0-553.105.1.rt7.446.el8_10 | < 0:4.18.0-553.105.1.rt7.446.el8_10

References (18)