CVE & CISA-KEV Catalog

CVE-2025-9408

HIGH
8.1
CVSS v3
NVD

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.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.11%probability of exploitation in 30 days
2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-270 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-26475Critical9.965%-Fix
CVE-2021-3493High8.844%KEVFix
CVE-2023-25754Critical9.82.3%-Fix
CVE-2023-37912Critical9.91.2%-Fix
CVE-2020-7019Medium6.51.2%-Fix
CVE-2019-14819High8.81.1%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-12.