Linux · 
Red Hat · Security advisory · August 19, 2026
Red Hat · Security advisory · August 19, 2026RHSA-2026:55765: Security update for 12 packages
RHSA-2026:55765, released August 19, 2026, fixes 11 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
11
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0041
35th percentile
Priority of the 11 CVEs
Patch now 0
Urgent 1
High 10
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel-rt | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-core | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug-core | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug-devel | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug-kvm | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug-modules | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-debug-modules-extra | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-devel | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-kvm | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-modules | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
| kernel-rt-modules-extra | RHEL 8 | 0:4.18.0-553.156.1.rt7.497.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-53374 | drm/amdgpu: zero-initialize GART table on allocation | 9.8 | 0.0013 | None reported |
| High | CVE-2026-74580 | vhost: reset the vring metadata cache on vring reconfiguration | 8.8 | 0.0041 | None reported |
| High | CVE-2026-63884 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0018 | None reported |
| High | CVE-2025-39902 | mm/slub: avoid accessing metadata when pointer is invalid in object_err() | 7.8 | 0.0017 | None reported |
| High | CVE-2026-64219 | drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async | 7.8 | 0.0017 | None reported |
| High | CVE-2026-17523 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0017 | None reported |
| High | CVE-2026-53329 | drm/amd/display: Use krealloc_array() in dal_vector_reserve() | 7.8 | 0.0015 | None reported |
| High | CVE-2026-63879 | drm/amdgpu: fix amdgpu_hmm_range_get_pages | 7.8 | 0.0014 | None reported |
| High | CVE-2026-53016 | crypto: ccp - copy IV using skcipher ivsize | 7.8 | 0.0014 | None reported |
| High | CVE-2026-43206 | kernel-zfcpdump-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0014 | None reported |
| High | CVE-2026-53136 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0013 | None reported |
Showing 1 to 11 of 11
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