RedHat Linux Kernel Multiple Vulnerabilities

CSIRTS triage

What

Multiple kernel vulnerabilities affect Red Hat Linux systems.

Who is affected

Red Hat Linux systems running affected kernel versions are vulnerable.

Urgency

Kernel vulnerabilities often enable privilege escalation; patch promptly.

Action

Apply Red Hat kernel security updates via package manager.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

HKCERT Security Bulletins (HK · national-cert · site)

Severity

unknown

Published

2026-09-02

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.hkcert.org/security-bulletin/redhat-linux-kernel-multiple-vulnerabilities_20260902

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2025-218340.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-230030.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434500.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-434540.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-459700.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-461200.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-530260.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-530530.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-531530.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-531850.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• medium[NEW] [medium] Linux Kernel: Vulnerability enables disclosure of informationcert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• high[NEW] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
• medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
• medium[NEW] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attackcert-bund
• unknownMultiple vulnerabilities in SUSE Linux kernel (August 28, 2026)cert-fr-avis
• unknownMultiple vulnerabilities in Red Hat Linux kernel (August 28, 2026)cert-fr-avis
• unknownMultiple vulnerabilities in Debian Linux kernel (August 28, 2026)cert-fr-avis
• unknownDSA-6466-1 linux - security updatedebian
• unknownUSN-8669-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
• unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu

Recent advisories for RedHat Linux Kernel

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• unknownRedHat Linux Kernel Multiple Vulnerabilitieshkcert · 2026-08-03
• unknownRedHat Linux Kernel Multiple Vulnerabilitieshkcert · 2026-07-02

More from HKCERT Security Bulletins

• unknownGitHub Enterprise Server Multiple Vulnerabilities2026-09-03
• unknownCisco Products Multiple Vulnerabilities2026-09-03
• unknownJenkins Multiple Vulnerabilities2026-09-03
• unknownMozilla Products Multiple Vulnerabilities2026-09-02
• unknownGoogle Chrome Multiple Vulnerabilities2026-09-02