Auth bypass in Airoha Technology Corp. Ab156x, Ab157x, Ab158x, Ab159x Series, Ab1627
CVE-2025-20700
In the Airoha Bluetooth audio SDK, there is a possible permission bypass that allows access critical data of RACE protocol through Bluetooth LE GATT service. 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
EPSS: 0.077 (94.1th percentile) — read the EPSS interpretation.
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.
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)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-20700?
- CVE-2025-20700 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-2025-20700?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-20700 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.