Cyber Resilience

CVE-2023-6749

HighPublic PoC

Published: 18 February 2024

Published
18 February 2024
Modified
22 January 2025
KEV Added
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Patch
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CVSS Score v3.1 8.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
EPSS Score 0.0018 39.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-6749 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Zephyrproject Zephyr. Its CVSS base score is 8.0 (High).

Operationally, ranked at the 39.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Unchecked length coming from user input in settings shell

CWE(s)
CWE-121CWE-787

Related Threats

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

Affected Assets

zephyrproject
zephyr
≤ 3.5.0

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