Missing Size Checks in Bluetooth HCI over SPI

published 2021-05-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2530

cvss: 3.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

Missing Size Checks in Bluetooth HCI over SPI. Zephyr versions >= v1.14.2, >= v2.2.0 contain Improper Handling of Length Parameter Inconsistency (CWE-130). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hg2w-62p6-g67c

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.8	CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

zephyrproject-rtos zephyr

Classification

Weakness

CWE-130 Improper Handling of Length Parameter Inconsistency
CWE-787 Out-of-bounds Write

References

github.com /zephyrproject-rtos/zephyr/security/advisories/GHSA-hg2w-62p6-g67c
third-party-advisory

Sources

CVE List CVE-2020-10065
NVD CVE-2020-10065

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary