CVE-2025-9558 — Classic Buffer Overflow in Zephyr

CWE-120 — Classic Buffer Overflow2 documents2 sources
Severity
7.6HIGHNVD
EPSS
0.0%
top 91.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Zephyrproject-rtos Zephyr
Timeline
PublishedNov 26

Description

There is a potential OOB Write vulnerability in the gen_prov_start function in pb_adv.c. The full length of the received data is copied into the link.rx.buf receiver buffer without any validation on the data size.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:HExploitability: 2.8 | Impact: 4.7

Affected Packages1 packages

▶CVEListV5zephyrproject-rtos/zephyr* — 4.2

🔴Vulnerability Details

1
CVEList
Bluetooth: Mesh: Out-of-Bound Write in gen_prov_start↗2025-11-26
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CVE-2025-9558 — Classic Buffer Overflow in Zephyr | cvebase