CVE-2025-21863
An attacker can exploit multiple vulnerabilities in the Linux Kernel to create a Denial of Service state and cause unspecified effects.
CSIRTS triage
- What
- Multiple vulnerabilities exist in the Debian Linux Kernel.
- Who is affected
- Deployments of Debian Linux Kernel.
- Urgency
- Remediation urgency is unclear due to lack of specific details.
- Action
- Monitor for updates from Debian.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-06
- unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert · 2026-07-06
External references
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