Red Hat Security Advisory: kernel security update
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in Red Hat package updates : patch Linux kernel soon.
Data as of 5 Nov 2026, 21:17 UTC
- Patch
- Available – fixed in d844702198395d3f80222777030f69db6be6b709, cd0e707a927a70cdfd8bc5a512a9719a87f5ed51, bc6c380c1159de52a252ed11f19a42c47f60a735 +2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
Red Hat has released updated kernel packages that fix this vulnerability. Users should apply the kernel update as provided by Red Hat for their respective Red Hat Enterprise Linux 8 variants and reboot the system to activate the fix. For detailed update instructions, refer to Red Hat's official guidance at https://access.redhat.com/articles/11258.
Description
A security update for the Linux kernel in Red Hat Enterprise Linux 8 addresses a vulnerability in SELinux related to overlayfs mmap() and mprotect() access checks (CVE-2026-46054). The update fixes improper access control checks that could potentially be exploited. Systems must be rebooted after applying the update for the fix to take effect.