What’s Vulnerable › Vulnerabilities
CVE-2025-9408: Userspace privilege escalation vulnerability on Cortex M
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-11-11 · updated 2026-10-18
- Weakness: CWE-270
Description
System call entry on Cortex M (and possibly R and A, but I think not) has a race which allows very practical privilege escalation for malicious userspace processes.
References
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