VulnerabilityDeferred

CVE-2025-9558

There is a potential OOB Write vulnerability in the gen_prov_start function in pb_adv.c.

HIGH 7.6EPSS 0.19%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1: 7.6 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS: 0.19% probability · 9th percentile
CISA KEV: Not listed
Weakness: CWE-120
Source: vulnerabilities@zephyrproject.org

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8wvr-688x-68vr

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.