Cyber Resilience

CVE-2023-4260

MediumPublic PoC

Published: 27 September 2023

Published
27 September 2023
Modified
13 February 2025
KEV Added
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Patch
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CVSS Score v3.1 6.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS Score 0.0026 49.7th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-4260 is a medium-severity Classic Buffer Overflow (CWE-120) vulnerability in Zephyrproject Zephyr. Its CVSS base score is 6.3 (Medium).

Operationally, ranked at the 49.7th 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

Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.

CWE(s)
CWE-120CWE-193

Related Threats

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

Affected Assets

zephyrproject
zephyr
≤ 3.4.0

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.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References