CVE-2025-9558: Buffer Overflow (CVSS 7.6)

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.

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CVSS v3.1 Score

7.6

HIGH

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

Weakness Type (CWE)

CWE-120 CWE-120

References

Other References

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

Frequently Asked Questions

What is CVE-2025-9558? +

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. It has a CVSS v3.1 base score of 7.6 (HIGH).

How severe is CVE-2025-9558? +

CVE-2025-9558 has a CVSS v3.1 score of 7.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-9558? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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