[UPDATE] [low] Linux Kernel: Multiple Vulnerabilities Allow Denial of Service

A local attacker can exploit multiple vulnerabilities in the Linux Kernel to perform a denial of service attack.

CSIRTS triage

What: A local attacker can exploit multiple vulnerabilities in the Linux Kernel to perform a denial of service attack.
Who is affected: Local deployments of the Linux Kernel are affected.
Urgency: Remediation is low urgency as it only leads to denial of service.
Action: Update to the latest version of the Linux Kernel.

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

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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-2026-434910.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-434920.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-434930.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-43491	coverage & exploitation status	NVD · CVE.org
CVE-2026-43492	coverage & exploitation status	NVD · CVE.org
CVE-2026-43493	coverage & exploitation status	NVD · CVE.org

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