Auth bypass in Airoha Technology Corp. Ab156x, Ab157x, Ab158x, Ab159x Series, Ab1627
CVE-2025-20702
In the Airoha Bluetooth audio SDK, there is a possible unauthorized access to the RACE protocol. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.115 (95.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.102 · newest: 0.115 · change: +0.013
Affected products
- Airoha Technology Corp. Ab156x, Ab157x, Ab158x, Ab159x Series, Ab1627 — versions Airoha IoT SDK for BT audio v5.5.0 and earlier, Airoha AB1561x/AB1562x/AB1563x SDK v3.3.1 and earlier
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20702?
- CVE-2025-20702 is a high-severity vulnerability in Airoha Technology Corp. Ab156x, Ab157x, Ab158x, Ab159x Series, Ab1627, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2025-08-04.
- How severe is CVE-2025-20702?
- High severity. CVSS v3 base score is 8.8 out of 10.