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CVE-2026-46054VulnerabilityPublished Updated

Red Hat Security Advisory: kernel security update

Affects Linux kernelSource GCVE Database

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Authoritative record:CVE-2026-46054· High 7.1

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

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 2f502839e85ab265f03f25f30d6463154aee5473, < d844702198395d3f80222777030f69db6be6b709
Fixed in
  • d844702198395d3f80222777030f69db6be6b709
LinuxLinuxAffected
  • ≥ 2f502839e85ab265f03f25f30d6463154aee5473, < cd0e707a927a70cdfd8bc5a512a9719a87f5ed51
Fixed in
  • cd0e707a927a70cdfd8bc5a512a9719a87f5ed51
LinuxLinuxAffected
  • ≥ 2f502839e85ab265f03f25f30d6463154aee5473, < bc6c380c1159de52a252ed11f19a42c47f60a735
Fixed in
  • bc6c380c1159de52a252ed11f19a42c47f60a735
LinuxLinuxAffected
  • ≥ 2f502839e85ab265f03f25f30d6463154aee5473, < 82544d36b1729153c8aeb179e84750f0c085d3b1
Fixed in
  • 82544d36b1729153c8aeb179e84750f0c085d3b1
LinuxLinuxAffected
  • ≥ 2f502839e85ab265f03f25f30d6463154aee5473, < 8bacd09f12c27710228562e4d13163e58c5f4a45
Fixed in
  • 8bacd09f12c27710228562e4d13163e58c5f4a45
LinuxLinuxAffected
  • =4.19
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.

References

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