CVE-2025-9558 — HIGH (7.6) — White Hats Nepal

Vulnerability 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 Score

7.6

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

HIGH

Related Weaknesses (CWE)

CWE-120

References

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

FAQ

What is CVE-2025-9558?

CVE-2025-9558 is a vulnerability with a CVSS score of 7.6 (HIGH). 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 t...

How severe is CVE-2025-9558?

CVE-2025-9558 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-9558?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.