RHSA-2026:64767: kernel security update

RHSA-2026:64767, released June 24, 2026, fixes 10 CVEs in kernel (version 6.12.0-55.103.1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0071

53rd percentile

Priority of the 10 CVEs

Patch now 0
                                Urgent 1
                                High 9
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel	RHEL 10	6.12.0-55.103.1.el10_0

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-46155	linux: In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in smb2_compo...	9.1	0.0048	None reported
High	CVE-2026-63886	bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: s...	9.8	0.0071	None reported
High	CVE-2026-53006	ipv6: fix possible UAF in icmpv6_rcv()	9.8	0.0039	None reported
High	CVE-2026-43114	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: k...	9.4	0.0037	None reported
High	CVE-2026-46099	net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels	8.1	0.0029	None reported
High	CVE-2026-46056	Bluetooth: hci_event: fix potential UAF in SSP passkey handlers	8.8	0.0028	None reported
High	CVE-2025-40149	tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().	8.8	0.0017	None reported
High	CVE-2026-64304	linux: In the Linux kernel, the following vulnerability has been resolved: crypto: qat - validate RSA CRT component lengths...	8.8	0.0017	None reported
High	CVE-2026-46145	kernel: In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Validate rx_hash_key_len Sashiko point...	7.8	0.0015	None reported
High	CVE-2026-53016	crypto: ccp - copy IV using skcipher ivsize	7.8	0.0014	None reported

Also fixes CVE-2026-46155

ALAS2023-2026-1754
bpftool6.18, bpftool6.18-debuginfo, kernel-livepatch-6.18.30-61.116 and 15 more on amzn 2023
ALAS2023-2026-1753
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.88-119.157 and 15 more on amzn 2023
ELSA-2026-36541
kernel, kernel-abi-stablelists, kernel-core and 27 more on ol 10
ALSA-2026:36541
kernel, kernel-64k, kernel-64k-core and 72 more on almalinux 10
SUSE-SU-2026:5091-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
RLSA-2026:36018
kernel on rocky 9
ELSA-2026-36018
kernel, kernel-abi-stablelists, kernel-core and 26 more on ol 9
RHSA-2026:36018
kernel, kernel-64k, kernel-64k-core and 69 more on RHEL 9

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:64767

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