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CVE-2026-74480VulnerabilityPublished 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 29 Oct 2026, 08:27 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Sep 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Product Security Red HatAffected
  • Red Hat
  • Red Hat Enterprise Linux
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • x86_64
Fixed in–

AI-suggested

A security update is available from Red Hat for Red Hat Enterprise Linux 8.4 that addresses CVE-2026-74480. Users should apply the kernel update as provided in Red Hat Advisory RHSA-2026:62372 and reboot their systems to ensure the fix takes effect. Red Hat recommends treating all kernel updates as security-relevant and advises against delaying installation of this update.

Description

A security update for the Linux kernel in Red Hat Enterprise Linux 8.4 addresses a vulnerability identified as CVE-2026-74480. The flaw involves the network bridge component, specifically the handling of fast-leave behavior after deleting a port group. Red Hat has released patches to fix this issue and recommends applying the update and rebooting affected systems to ensure protection.

References

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