Potential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystem (zephyrproject-rtos Zephyr)

CVE-2023-5753

MEDIUM 6.3

At a glance

Source: NVD
EPSS: EPSS 1.02 % · percentile 64 (2026-11-01)
State: PUBLISHED
Published: 2023-10-24 16:09 UTC
Updated: 2025-02-13 17:25 UTC
Assigner: zephyr
NVD status: Modified

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Description

Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c

Weaknesses (CWE)

CWE-120 — Buffer Copy without Checking Size of Input
CWE-191 — Integer Underflow (Wrap or Wraparound)

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	zephyr
CVSS 3.1	MEDIUM 6.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	NVD · vulnerabilities@zephyrproject.org (Secondary)
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2023-58038
GCVE · GCVE-0-2023-5753

Affected configurations (NVD CPE)

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* ≤ 3.4.0

Affected products

Product	Versions
zephyrproject-rtos · Zephyr	affected * < 3.5

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD