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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

Apply the Red Hat kernel security update as detailed in advisory RHSA-2026:60437 and reboot the system to activate the fix. Red Hat strongly recommends not delaying this update due to the kernel's fundamental role and the potential security impact of the vulnerability.

Description

A use-after-free vulnerability (CVE-2026-74581) exists in the Linux kernel's IPv6 networking code due to a stale pointer in fib6_rule_suppress. This flaw affects the kernel packages in Red Hat Enterprise Linux 9.2 and related variants. 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 important by Red Hat and is associated with a high severity impact. No public exploit or CVSS score is currently available.

References

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