CVE-2025-21816
An attacker can exploit multiple vulnerabilities in Linux Kernel to conduct a denial of service attack and achieve unspecified effects.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in Linux Kernel to conduct a denial of service attack and achieve unspecified effects.
- Who is affected
- Deployments of the Linux Kernel are affected by these vulnerabilities.
- Urgency
- Remediation is urgent due to the high severity and potential for denial of service.
- Action
- Apply the latest patches for the Linux Kernel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Advisory coverage (1)
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-14
External references
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[](https://www.csirts.com/cve/CVE-2025-21816)