CVE-2025-40003
CSIRTS triage
- What
- The Ocelot switch driver has a use-after-free vulnerability caused by cyclic delayed work scheduling.
- Who is affected
- Systems using Microchip Ocelot switches with the vulnerable Linux kernel driver.
- Urgency
- High severity (CVSS 7.8); use-after-free can lead to kernel crash or code execution.
- Action
- Apply the Linux kernel patch that fixes cyclic delayed work handling in the Ocelot driver.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2025-40003
Get an email if CVE-2025-40003 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 risk0.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2025-40003: net: mscc: ocelot: Fix use-after-free caused by cyclic delayed workmsrc · 2026-08-06
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-2025-40003)