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.

Contact

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