Linux · 
Red Hat · Security advisory · July 14, 2026
Red Hat · Security advisory · July 14, 2026RHSA-2026:39083: Security update for 23 packages
RHSA-2026:39083, released July 14, 2026, fixes 8 CVEs across 23 products. One of them is being exploited (CVE-2026-53266); 1 on CISA KEV. Patch Radar priority: Patch now.
Patch now1 on CISA KEV
CVEs closed
8
None rated Critical
Exploited
1
CVE-2026-53266
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0537
92nd percentile
Priority of the 8 CVEs
Patch now 1
Urgent 0
High 7
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| bpftool | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-abi-stablelists | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-core | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-debug | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-debug-core | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-debug-devel | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-debug-modules | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-debug-modules-extra | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-devel | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-doc | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-modules | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-modules-extra | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-tools | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-tools-libs | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-tools-libs-devel | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-zfcpdump | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-zfcpdump-core | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-zfcpdump-devel | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-zfcpdump-modules | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| kernel-zfcpdump-modules-extra | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| perf | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
| python3-perf | RHEL 8 | 0:4.18.0-553.143.1.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Patch now | CVE-2026-53266 | netfilter: bridge: make ebt_snat ARP rewrite writable | 8.8 | 0.0093 | KEVExploited |
| High | CVE-2026-43499 | rtmutex: Use waiter::task instead of current in remove_waiter() | 7.8 | 0.0537 | None reported |
| High | CVE-2026-53359 | 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... | 8.8 | 0.0137 | None reported |
| High | CVE-2026-46113 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n... | 8.8 | 0.0020 | None reported |
| High | CVE-2025-71066 | linux: In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: Always remove class from active... | 7.8 | 0.0017 | None reported |
| High | CVE-2025-71089 | iommu: disable SVA when CONFIG_X86 is set | 7.8 | 0.0016 | None reported |
| High | CVE-2026-31411 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n... | 7.1 | 0.0013 | None reported |
| High | CVE-2026-53166 | futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock | 7.8 | n/a | None reported |
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