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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 E4S (v.8.8)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • ppc64le
Fixed in–

AI-suggested

Red Hat has released updated kernel packages that fix this vulnerability. Users of Red Hat Enterprise Linux 8.8 and related variants should apply the kernel update as soon as possible and reboot their systems to ensure the patch takes effect. Red Hat recommends treating all kernel errata as security-relevant and advises against delaying updates to avoid exposure.

Description

A security update for the Linux kernel in Red Hat Enterprise Linux 8.8 addresses a vulnerability identified as CVE-2026-74480. The issue involves the network bridge component and specifically the handling of fast-leave behavior after deleting a port group. Red Hat has released patches to fix this vulnerability and recommends applying the update and rebooting affected systems to ensure protection.

References

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