CVE-2025-9408 describes a race condition within the system call entry mechanism on Cortex-M processors, potentially affecting Cortex-R and Cortex-A architectures as well. This flaw enables a practical privilege escalation for malicious userspace processes. With a CVSS score of 8.1 (HIGH), the vulnerability has a local attack vector and high impact on confidentiality, integrity, and availability, despite high attack complexity. Currently, there is no public exploit code available, nor is it listed in CISA's KEV catalog, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Zephyrproject-Rtos | Zephyr | <= 4.2CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.