Red Hat has released several security updates for Red Hat Enterprise Linux. The kernel security update for RHEL 8 has been rated as having a moderate security impact, while the Valkey and Ghostscript security updates for RHEL 9 and RHEL 9.4 Extended Update Support have been rated as important and moderate, respectively. These updates address vulnerabilities in their respective software packages.

RHSA-2025:21917: Moderate: kernel security update
RHSA-2025:21916: Important: valkey security update
RHSA-2025:21915: Moderate: ghostscript security update

RHSA-2025:21917: Moderate: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

RHSA-2025:21917: Moderate: kernel security update

RHSA-2025:21916: Important: valkey security update

An update for valkey is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

RHSA-2025:21916: Important: valkey security update

RHSA-2025:21915: Moderate: ghostscript security update

An update for ghostscript is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

RHSA-2025:21915: Moderate: ghostscript security update