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High

Missing Authentication in Airoha Bluetooth BR/EDR allowing unauthorized audio connection

IdentifiersCVE-2025-20701CWE-306

CVE-2025-20701 is a missing-authentication vulnerability in the Bluetooth Classic (BR/EDR) functionality of Airoha Bluetooth audio SDK / Airoha-based SoCs used in devices including Beats Studio Buds. The flaw allows a nearby attacker to establish an unauthorized Bluetooth Classic connection to a target audio device without user consent and without prior pairing. Available reporting indicates the issue affects devices that are not yet paired and are actively seeking pairing requests. Researchers and vendor statements describe the weakness as missing authentication in the BR/EDR path, enabling unauthorized two-way audio connections, including use of the Hands-Free Profile (HfP), which can expose microphone audio from the target device.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A successful attacker within Bluetooth range can connect to the vulnerable headset/earbuds without authorization and eavesdrop via the device microphone. The primary impact described in the source material is remote privilege escalation in the Bluetooth trust boundary and unauthorized audio access, specifically the ability to establish two-way audio/HfP connections and listen to conversations. In broader attack chains with related Airoha vulnerabilities, this issue can contribute to takeover of the audio device and downstream abuse of the paired phone relationship, but those additional effects are not solely attributable to CVE-2025-20701.

Mitigation

If you can’t patch tonight, do this now.

Until patched firmware is installed, reduce exposure by limiting the device's discoverable/pairing state, avoiding leaving unpaired devices actively seeking pairing requests in untrusted environments, and minimizing use in proximity to potential attackers. Keep headphone firmware current and verify installed firmware version where supported. Because exploitation requires physical proximity within Bluetooth range, operational mitigations should focus on controlling nearby access and avoiding use of vulnerable devices in sensitive settings until updated.

Remediation

Patch, then assume compromise.

Apply vendor firmware updates that incorporate Airoha's fixes for the BR/EDR authentication weakness. For Beats Studio Buds, Apple states the issue is addressed in Beats Firmware Update 1B211, which is automatically delivered when the headphones are paired and within Bluetooth range of an iPhone, iPad, or Mac. More generally, manufacturers using affected Airoha SDK/SoCs should integrate the updated Airoha SDK and ship device-specific firmware updates.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

23 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity14

Community discussion across Reddit, Mastodon, and other social sources.