CVE-2025-21690
A local attacker can exploit multiple vulnerabilities in Linux Kernel to conduct a Denial of Service attack and escalate privileges.
CSIRTS triage
- What
- Multiple vulnerabilities allow a local attacker to conduct a Denial of Service attack and escalate privileges.
- Who is affected
- Local users of the Linux Kernel.
- Urgency
- Remediation is critical due to the high severity of potential Denial of Service and privilege escalation, although exploitation has not been reported.
- Action
- Apply the latest security updates to the Linux Kernel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
Advisory coverage (1)
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-02
External references
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