CVE-2025-40021
A local attacker can exploit multiple vulnerabilities in the Linux Kernel to carry out a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in the Linux Kernel allow local attackers to perform denial-of-service attacks.
- Who is affected
- Local deployments of the Linux Kernel are affected by these vulnerabilities.
- Urgency
- Remediation is important as these vulnerabilities can lead to service disruptions.
- 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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Exploitation outlook
- Low exploitation risk0.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
Advisory coverage (1)
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-14
External references
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