High7.0Vendor: MediumRed Hat Linux

High [CVE-2026-43023] fix race conditions in sco_sock_connect()

This high-severity Red Hat Linux advisory covers CVE-2026-43023 affecting Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 9, kernel.

CVE-2026-43023 Published May 1, 2026

CVE-2026-43023

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

fix race conditions in sco_sock_connect(). Red Hat rates this moderate (CVSS 7).

Weakness: CWE-821. Affected package(s): kernel.

Resolved in Red Hat advisory RHSA-2026:21557 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.

Affected versions

kernel-0:6.12.0-211.18.1.el10_2
kernel-0:5.14.0-687.12.1.el9_8

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:21557

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:21557 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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