Cyber Resilience

CVE-2023-5406

Medium

Published: 17 April 2024

Published
17 April 2024
Modified
15 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0061 70.4th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-5406 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Honeywell Security Notification (inferred from references). Its CVSS base score is 5.9 (Medium).

Operationally, ranked in the top 29.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Server communication with a controller can lead to remote code execution using a specially crafted message from the controller. See Honeywell Security Notification for recommendations on upgrading and versioning.

CWE(s)
CWE-787

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Honeywell
Security Notification
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References