CVE•Published 2026-04-18•Modified 2026-04-29•0 articles on news•6 live references•NVD data
CVE-2026-40337
Vulnerability data via NVD (ingested)
CVSS v3.1
5.1
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
EPSS percentile
0
Exploit Prediction Scoring System · top 100% of all CVEs
Weaknesses (CWE)
Description
The Sentry kernel is a high security level micro-kernel implementation made for high security embedded systems. A given task with one of the DEV or IO capability is able to interact with another task's IRQ line through the __sys_int_* syscall familly. Prior to version 0.4.7, this can lead to DoS and covert-channels between this task and the outer world. A patch is available in version 0.4.7. As a workaround, reduce tasks that have the DEV and IO capability to a single one.
Timeline
Published 2026-04-18
Modified 2026-04-29
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-40337Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40337Censys host search filtered to this CVE id.
grep.app
CVE-2026-40337Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40337GitHub code search for direct mentions.
Google dork
"CVE-2026-40337" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40337 on GitHub.
We haven't classified any articles referencing CVE-2026-40337 yet. The external references above still apply.