# RHSA-2026:86033: Security update for 72 packages RHSA-2026:86033, released October 21, 2026, fixes 16 CVEs across 72 products. None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/linux/rhsa-2026-86033 - Platform: Linux - Released: Oct 21, 2026 - Priority: Urgent (Closes CVE-2026-99999, rated Critical) - CVEs: 16, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://access.redhat.com/errata/RHSA-2026:86033 ## Applies to | Product | Release | Fixed in | |---|---|---| | [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k](https://patchblox.com/security/data/product/linux/kernel-64k.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-core](https://patchblox.com/security/data/product/linux/kernel-64k-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug](https://patchblox.com/security/data/product/linux/kernel-64k-debug.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-core](https://patchblox.com/security/data/product/linux/kernel-64k-debug-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-devel](https://patchblox.com/security/data/product/linux/kernel-64k-debug-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-devel-matched](https://patchblox.com/security/data/product/linux/kernel-64k-debug-devel-matched.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-modules](https://patchblox.com/security/data/product/linux/kernel-64k-debug-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-64k-debug-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-64k-debug-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-devel](https://patchblox.com/security/data/product/linux/kernel-64k-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-devel-matched](https://patchblox.com/security/data/product/linux/kernel-64k-devel-matched.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-modules](https://patchblox.com/security/data/product/linux/kernel-64k-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-modules-core](https://patchblox.com/security/data/product/linux/kernel-64k-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-64k-modules-extra](https://patchblox.com/security/data/product/linux/kernel-64k-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-abi-stablelists](https://patchblox.com/security/data/product/linux/kernel-abi-stablelists.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-core](https://patchblox.com/security/data/product/linux/kernel-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug](https://patchblox.com/security/data/product/linux/kernel-debug.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-core](https://patchblox.com/security/data/product/linux/kernel-debug-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-devel](https://patchblox.com/security/data/product/linux/kernel-debug-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-devel-matched](https://patchblox.com/security/data/product/linux/kernel-debug-devel-matched.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-modules](https://patchblox.com/security/data/product/linux/kernel-debug-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-debug-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-debug-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-debug-uki-virt](https://patchblox.com/security/data/product/linux/kernel-debug-uki-virt.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-devel-matched](https://patchblox.com/security/data/product/linux/kernel-devel-matched.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-doc](https://patchblox.com/security/data/product/linux/kernel-doc.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-modules](https://patchblox.com/security/data/product/linux/kernel-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-modules-core](https://patchblox.com/security/data/product/linux/kernel-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt](https://patchblox.com/security/data/product/linux/kernel-rt.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k](https://patchblox.com/security/data/product/linux/kernel-rt-64k.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-core](https://patchblox.com/security/data/product/linux/kernel-rt-64k-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug-core](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug-devel](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug-modules](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-64k-debug-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-devel](https://patchblox.com/security/data/product/linux/kernel-rt-64k-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-modules](https://patchblox.com/security/data/product/linux/kernel-rt-64k-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-modules-core](https://patchblox.com/security/data/product/linux/kernel-rt-64k-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-64k-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-64k-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-core](https://patchblox.com/security/data/product/linux/kernel-rt-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug](https://patchblox.com/security/data/product/linux/kernel-rt-debug.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug-core](https://patchblox.com/security/data/product/linux/kernel-rt-debug-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug-devel](https://patchblox.com/security/data/product/linux/kernel-rt-debug-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug-modules](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-devel](https://patchblox.com/security/data/product/linux/kernel-rt-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-modules](https://patchblox.com/security/data/product/linux/kernel-rt-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-modules-core](https://patchblox.com/security/data/product/linux/kernel-rt-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-rt-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-tools-libs](https://patchblox.com/security/data/product/linux/kernel-tools-libs.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-tools-libs-devel](https://patchblox.com/security/data/product/linux/kernel-tools-libs-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-uki-virt](https://patchblox.com/security/data/product/linux/kernel-uki-virt.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-uki-virt-addons](https://patchblox.com/security/data/product/linux/kernel-uki-virt-addons.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump](https://patchblox.com/security/data/product/linux/kernel-zfcpdump.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-core](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-devel](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-devel.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-devel-matched](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-devel-matched.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-modules](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-modules.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-modules-core](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-modules-core.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [kernel-zfcpdump-modules-extra](https://patchblox.com/security/data/product/linux/kernel-zfcpdump-modules-extra.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [libperf](https://patchblox.com/security/data/product/linux/libperf.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [perf](https://patchblox.com/security/data/product/linux/perf.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [rtla](https://patchblox.com/security/data/product/linux/rtla.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | | [rv](https://patchblox.com/security/data/product/linux/rv.md) | RHEL 9 | 0:5.14.0-687.59.1.el9_8 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-99999](https://patchblox.com/security/data/cve/CVE-2026-99999.md) | Urgent | ipv4: validate checksum_start before completing checksum | 9.3 | 0.0079 | | | [CVE-2026-89633](https://patchblox.com/security/data/cve/CVE-2026-89633.md) | Urgent | linux: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB read/write from unvalidated... | 9.8 | 0.0055 | | | [CVE-2026-63974](https://patchblox.com/security/data/cve/CVE-2026-63974.md) | Urgent | Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close | 9.8 | 0.0035 | | | [CVE-2026-80590](https://patchblox.com/security/data/cve/CVE-2026-80590.md) | High | inet: frags: strip GSO state from fragments before reassembly | 8.8 | 0.0058 | | | [CVE-2026-64024](https://patchblox.com/security/data/cve/CVE-2026-64024.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 9.4 | 0.0031 | | | [CVE-2026-74509](https://patchblox.com/security/data/cve/CVE-2026-74509.md) | High | Bluetooth: hci_sync: Fix advertising data UAFs | 8.8 | 0.0025 | | | [CVE-2026-64572](https://patchblox.com/security/data/cve/CVE-2026-64572.md) | High | ipv4: fib: free fib_alias with kfree_rcu() on insert error path | 8.8 | 0.0020 | | | [CVE-2026-98260](https://patchblox.com/security/data/cve/CVE-2026-98260.md) | High | exec: Cleanup POSIX timers right after de_thread() | 8.8 | 0.0019 | | | [CVE-2026-63899](https://patchblox.com/security/data/cve/CVE-2026-63899.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 8.8 | 0.0018 | | | [CVE-2026-63956](https://patchblox.com/security/data/cve/CVE-2026-63956.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0017 | | | [CVE-2026-63962](https://patchblox.com/security/data/cve/CVE-2026-63962.md) | High | usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() | 8.8 | 0.0016 | | | [CVE-2026-64114](https://patchblox.com/security/data/cve/CVE-2026-64114.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 8.8 | 0.0014 | | | [CVE-2026-64032](https://patchblox.com/security/data/cve/CVE-2026-64032.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 8.8 | 0.0013 | | | [CVE-2026-31678](https://patchblox.com/security/data/cve/CVE-2026-31678.md) | High | openvswitch: defer tunnel netdev_put to RCU release | 8.8 | 0.0013 | | | [CVE-2026-93817](https://patchblox.com/security/data/cve/CVE-2026-93817.md) | High | perf: Fix addr_filter_ranges lifetime | 8.8 | 0.0013 | | | [CVE-2026-52935](https://patchblox.com/security/data/cve/CVE-2026-52935.md) | High | xfrm: espintcp: do not reuse an in-progress partial send | 8.8 | 0.0010 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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