CVE-2025-20702 | BDVDB-2026-288359 Detail

Airoha TechnologyAB156x, AB157x, AB158x, AB159x series, AB1627

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: adjacent.

Weaknesses#

CWE-306 Missing Authentication for Critical Function

References#

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

Exploit#

No public exploit known

History#

Version 12025-08-04Record published in the CVE List.
Version 22026-02-26Most recent update recorded in the CVE List.

Published

Published: 2025-08-04
Last modified: 2026-02-26

Vendor information

Vendor: Airoha Technology
Product: AB156x, AB157x, AB158x, AB159x series, AB1627

All Airoha Technology vulnerabilities

Score

8.8 High

EPSS

9.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 95.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Airoha IoT SDK for BT audio v5.5.0 and earlier
Fixed
Not stated
Vulnerable
Airoha AB1561x/AB1562x/AB1563x SDK v3.3.1 and earlier
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

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

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).