Cyber Resilience

CVE-2023-4259

HighPublic PoC

Published: 26 September 2023

Published
26 September 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS Score 0.0017 38.7th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-4259 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Zephyrproject Zephyr. Its CVSS base score is 7.1 (High).

Operationally, ranked at the 38.7th 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

Two potential buffer overflow vulnerabilities at the following locations in the Zephyr eS-WiFi driver source code.

CWE(s)

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.

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