Linux · 
Red Hat · Security advisory · July 8, 2026
Red Hat · Security advisory · July 8, 2026RHSA-2026:36348: Security update for 12 packages
RHSA-2026:36348, released July 8, 2026, fixes 6 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
6
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0054
45th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 1
High 5
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel-rt | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-core | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug-core | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug-devel | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug-kvm | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug-modules | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-debug-modules-extra | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-devel | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-kvm | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-modules | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
| kernel-rt-modules-extra | RHEL 8 | 0:4.18.0-553.140.1.rt7.481.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2025-10263 | ARM: CVE-2025-10263 Completion of affected memory accesses might not be guaranteed by completion of a TLBI [kernel] | 9.3 | 0.0054 | Exploitation Less Likely |
| High | CVE-2026-43198 | tcp: fix potential race in tcp_v6_syn_recv_sock() | 9.8 | 0.0030 | None reported |
| High | CVE-2026-46209 | kernel-uek-core: [5.15.0-323.211.3.3] - Revert 'x86/alternatives: Add alt_instr.flags' (Harshit Mogalapalli) [Orabug: 39853924] [5.1... | 8.4 | 0.0014 | None reported |
| High | CVE-2026-43450 | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: f... | 8.8 | 0.0013 | None reported |
| High | CVE-2026-46259 | linux: In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading... | 8.4 | 0.0012 | None reported |
| High | CVE-2026-46227 | sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL | 8.4 | 0.0010 | None reported |
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