Linux · 
Red Hat · Security advisory · August 1, 2026
Red Hat · Security advisory · August 1, 2026RHSA-2026:49030: kernel security update
RHSA-2026:49030, released August 1, 2026, fixes 4 CVEs in kernel (version 6.12.0-55.94.1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
4
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0027
19th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 1
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel | RHEL 10 | 6.12.0-55.94.1.el10_0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-64562 | KVM: nVMX: Hide shadow VMCS right after VMCLEAR | 9.8 | 0.0016 | None reported |
| High | CVE-2026-64561 | KVM: x86: Check for invalid/obsolete root *after* making MMU pages available | 8.8 | 0.0027 | None reported |
| High | CVE-2026-63807 | KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level | 8.8 | 0.0017 | None reported |
| High | CVE-2025-40026 | KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O | 7.9 | 0.0017 | None reported |
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