RHSA-2026:1581 — Security Advisory
Red Hat Security Advisory: kernel security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · January 29, 2026
Updated · October 30, 2026
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.
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.
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
-
kernel: e1000e: fix heap overflow in e1000_set_eeprom (CVE-2025-39898)
-
kernel: i40e: fix idx validation in config queues msg (CVE-2025-39971)
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kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.