RHSA-2026:73130: High severity Red Hat Red Hat Enterprise Linux for x86_64 vulnerability
Published Sep 29, 2026
·Updated
Important: thunderbird security update
Affected Software
16 affected components
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Event History
Sep 29, 2026
Advisory Published
via Red Hat·10:55 AM
Data Sourced
via Red Hat·10:55 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which environments are covered by this advisory?
The advisory applies to Red Hat Enterprise Linux deployments on x86_64, ARM 64, IBM z Systems, and Power little-endian, including certain Extended Update Support, Extended Life Cycle, and four-year update offerings.
2
How urgent is remediation?
The update is classified as Important by Red Hat and has a high severity rating of 7, with a listed risk score of 33.