Linux · 
Red Hat · Security advisory · December 6, 2025
Red Hat · Security advisory · December 6, 2025RHSA-2026:1236: kernel security update
RHSA-2026:1236, released December 6, 2025, fixes 7 CVEs in kernel (version 6.12.0-55.55.1.el10_0). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
7
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0025
17th percentile
Priority of the 7 CVEs
Patch now 0
Urgent 0
High 7
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel | RHEL 10 | 6.12.0-55.55.1.el10_0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-40277 | drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE | 7.8 | 0.0025 | None reported |
| High | CVE-2025-37891 | ALSA: ump: Fix buffer overflow at UMP SysEx message conversion | 7.8 | 0.0025 | None reported |
| High | CVE-2025-37819 | irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() | 7.8 | 0.0023 | None reported |
| High | CVE-2025-37789 | net: openvswitch: fix nested key length validation in the set() action | 7.8 | 0.0022 | None reported |
| High | CVE-2025-40154 | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n... | 7.8 | 0.0021 | None reported |
| High | CVE-2025-37761 | kernel: In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix an out-of-bounds shift when invalidat... | 7.1 | 0.0021 | None reported |
| High | CVE-2025-21815 | kernel: In the Linux kernel, the following vulnerability has been resolved: mm/compaction: fix UBSAN shift-out-of-bounds warn... | 7.1 | 0.0019 | None reported |
Showing 1 to 7 of 7
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