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CVE-2024-21626VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat build of MicroShift 4.14.42 security update

Affects Red HatSource GCVE Database

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Public exploit available (Metasploit) · 18% EPSS.

Data as of 29 Oct 2026, 10:09 UTC

Severity
High

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

EPSS
18.9% chance of exploitation in 30 days – higher than 97% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Dec 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    1 Metasploit module

  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

AI-suggested

Red Hat has released updated RPM packages and container images for MicroShift 4.14.42 that fix the file descriptor leak vulnerability. Users should apply these updates promptly once available in the RPM repository. Detailed installation and update instructions are provided in Red Hat's MicroShift documentation. No additional mitigation steps are indicated beyond applying the official update.

Description

Red Hat has released a security update for its MicroShift 4.14.42 build addressing a file descriptor leak vulnerability in runc (CVE-2024-21626). MicroShift is a lightweight Kubernetes orchestration solution for edge device deployments. The vulnerability could lead to resource leakage affecting system stability. Updated RPM packages and container images are available and users are advised to apply these updates. The issue is rated as important by Red Hat and has public exploit code available via Metasploit.

References

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