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CVE-2026-23097VulnerabilityPublished Updated

Red Hat Security Advisory: kernel security update

Affects Linux kernelSource GCVE Database

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Authoritative record:CVE-2026-23097· Medium

Not known to be exploited · fixed in Red Hat package updates : update Linux kernel when convenient.

Data as of 1 Nov 2026, 00:38 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Patch
Available – fixed in e7396d23f9d5739f56cf9ab430c3a169f5508394, b75070823b89009f5123fd0e05a8e0c3d39937c1, b7880cb166ab62c2409046b2347261abf701530e +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Feb 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 31 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.9.9 <5.10
Fixed in
  • e7396d23f9d5739f56cf9ab430c3a169f5508394
  • b75070823b89009f5123fd0e05a8e0c3d39937c1
  • b7880cb166ab62c2409046b2347261abf701530e
  • ad97b9a55246eb940a26ac977f80892a395cabf9
  • 526394af4e8ade89cacd1a9ce2b97712712fcc34
  • 5edb9854f8df5428b40990a1c7d60507da5bd330
  • 5.10
  • 1b68efce6dd483d22f50d0d3800c4cfda14b1305
LinuxLinuxAffected
  • =5.10
Fixed in–

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Linux kernel: Denial of Service due to a deadlock in hugetlb folio migration (CVE-2026-23097) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

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