RHSA-2026:87374: Security update for 12 packages

RHSA-2026:87374, released October 24, 2026, fixes 7 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0058

47th percentile

Priority of the 7 CVEs

Patch now 0
                                Urgent 0
                                High 7
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel-rt	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-core	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug-core	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug-devel	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug-kvm	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug-modules	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-debug-modules-extra	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-devel	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-kvm	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-modules	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10
kernel-rt-modules-extra	RHEL 8	0:4.18.0-553.177.1.rt7.518.el8_10

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-80590	inet: frags: strip GSO state from fragments before reassembly	8.8	0.0058	None reported
High	CVE-2026-64572	ipv4: fib: free fib_alias with kfree_rcu() on insert error path	8.8	0.0020	None reported
High	CVE-2026-68202	ALSA: seq: close a re-opened queue timer in the destructor	7.8	0.0018	None reported
High	CVE-2026-89777	vfio/pci: clear vdev->msi_perm after freeing it on init failure	8.8	0.0016	None reported
High	CVE-2026-80536	xfs: bounds-check buffer log item's dirty bitmap	8.4	0.0014	None reported
High	CVE-2026-64114	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system	8.8	0.0014	None reported
High	CVE-2026-64266	fuse: re-lock request before returning from fuse_ref_folio()	7.8	0.0013	None reported

Also fixes CVE-2026-80590

SUSE-SU-2026:4120-1
kernel-livepatch-SLE15-SP7-RT_Update_20 on sles 15.7
ELSA-2026-500248
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
ELSA-2026-500249
bpftool, kernel-uek, kernel-uek-container and 16 more on ol 8, ol 9
ALAS2023-2026-2143
bpftool, bpftool-debuginfo, kernel and 15 more on amzn 2023
OPENSUSE-SU-2026:21910-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0
SUSE-SU-2026:23902-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 16.0
SUSE-SU-2026:4254-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
ALAS2023-2026-3196
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.110-135.201 and 15 more on amzn 2023

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:87374

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