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CVE-2026-43503VulnerabilityPublished Updated

Red Hat Security Advisory: kpatch-patch-5_14_0-284_104_1, kpatch-patch-5_14_0-284_117_1

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Public exploit available (Metasploit).

Data as of 30 Oct 2026, 02:46 UTC

Severity
High

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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Jun 2026

  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 official kpatch live patch modules that fix these vulnerabilities for Red Hat Enterprise Linux 9.2. Users should apply the updates as described in the Red Hat advisory RHSA-2026:23469 and the referenced article https://access.redhat.com/articles/11258. Applying these patches mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor advisory.

Description

This advisory addresses security vulnerabilities in the Linux kernel for Red Hat Enterprise Linux 9.2, specifically targeting kernel-5.14.0-284.104.1.el9_2 via a kpatch live patch module. The vulnerabilities include a local privilege escalation (LPE) due to a variant of the Dirty Frag vulnerability in the ESP/XFRM subsystem (CVE-2026-46300) and an issue allowing unprivileged users to read root-owned files (CVE-2026-46333). A Metasploit public exploit exists for these vulnerabilities. Red Hat has released patches for these issues as part of this advisory.

References

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