Vulnerability · Published Aug 4, 2025 · Assigned by MediaTek

CVE-2025-20700

High 8.8

In plain English

A high-severity missing authentication in AB156x, AB157x, AB158x, AB159x series, AB1627 from Airoha Technology Corp.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.4% (higher than 94% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)7.4%top 5.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Airoha Technology Corp.	AB156x, AB157x, AB158x, AB159x series, AB1627	Airoha IoT SDK for BT audio v5.5.0 and earlierAiroha AB1561x/AB1562x/AB1563x SDK v3.3.1 and earlier

Weakness: CWE-306 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.airoha.com/product-security-bulletin/2025