CVE-2025-21852
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 allow an attacker to create a denial of service state and cause unspecified effects.
- Who is affected
- Deployments of the Linux Kernel are affected.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities.
- Action
- Update to the latest version of the Linux Kernel to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2025-21852
Get an email if CVE-2025-21852 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
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 vulnerabilities allow Denial of Servicecert-bund · 2026-07-06
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2025-21852)