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CVE-2026-74581VulnerabilityPublished Updated

Red Hat Security Advisory: kernel security update

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 31 Oct 2026, 11:08 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Aug 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 30 Oct 2026.

What to do

AI-suggested

Red Hat has released updated kernel packages for Red Hat Enterprise Linux 8.6 that fix this vulnerability. Users should apply the security update as soon as possible and reboot their systems for the patch to take effect. Red Hat recommends treating all kernel errata as security-relevant and not delaying updates.

Description

A use-after-free vulnerability exists in the Linux kernel's IPv6 networking code due to a stale pointer in fib6_rule_suppress. This flaw affects Red Hat Enterprise Linux 8.6 kernel packages. Red Hat has released a security update to address this issue and recommends applying the update and rebooting the system. The vulnerability is rated as having an important security impact.

References

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