# RHSA-2026:26428: Security update for 12 packages

RHSA-2026:26428, released June 24, 2026, fixes 8 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-26428
- Platform: Linux
- Released: Jun 24, 2026
- Priority: High (Closes CVE-2026-31669, high severity)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:26428

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-rt](https://patchblox.com/security/data/product/linux/kernel-rt.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-core](https://patchblox.com/security/data/product/linux/kernel-rt-core.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug](https://patchblox.com/security/data/product/linux/kernel-rt-debug.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug-core](https://patchblox.com/security/data/product/linux/kernel-rt-debug-core.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug-devel](https://patchblox.com/security/data/product/linux/kernel-rt-debug-devel.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-debug-kvm.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug-modules](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules-extra.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-devel](https://patchblox.com/security/data/product/linux/kernel-rt-devel.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-kvm.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-modules](https://patchblox.com/security/data/product/linux/kernel-rt-modules.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |
| [kernel-rt-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-modules-extra.md) | RHEL 8 | 0:4.18.0-553.134.1.rt7.475.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-31669](https://patchblox.com/security/data/cve/CVE-2026-31669.md) | High | mptcp: fix slab-use-after-free in __inet_lookup_established | 9.8 | 0.0047 |  |
| [CVE-2026-46125](https://patchblox.com/security/data/cve/CVE-2026-46125.md) | High | wifi: mac80211: remove station if connection prep fails | 8.8 | 0.0030 |  |
| [CVE-2026-46056](https://patchblox.com/security/data/cve/CVE-2026-46056.md) | High | Bluetooth: hci_event: fix potential UAF in SSP passkey handlers | 8.8 | 0.0028 |  |
| [CVE-2026-43110](https://patchblox.com/security/data/cve/CVE-2026-43110.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: brcmfmac: validate bsscfg indices in IF ev... | 8.8 | 0.0027 |  |
| [CVE-2026-31786](https://patchblox.com/security/data/cve/CVE-2026-31786.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c T... | 7.8 | 0.0020 |  |
| [CVE-2026-31787](https://patchblox.com/security/data/cve/CVE-2026-31787.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting pr... | 7.8 | 0.0018 |  |
| [CVE-2026-43329](https://patchblox.com/security/data/cve/CVE-2026-43329.md) | High | kpatch-patch-4_18_0-553_109_1: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a run... | 7.8 | 0.0018 |  |
| [CVE-2026-46152](https://patchblox.com/security/data/cve/CVE-2026-46152.md) | High | wifi: mac80211: drop stray 'static' from fast-RX rx_result | 8.8 | 0.0017 |  |

---

Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo