Code-execution chain via HCI receive-length overflow
Published Jun 28, 2025 · Updated Jun 30, 2025
Integer overflow in the Bluetooth stack of JOYNEXT MIB3 OI MQB 0304 and earlier allows attackers to alter processing via crafted HCI packets. In tsd.bt.phone.mib3, pLink->rxLen wraps to a small value while the underlying non-fragmented packet data remains unchanged. Bluetooth pairing over AVDTP is required; the flaw contributes to a three-vulnerability chain that executes code as the low-privileged phone user.
Summary
What happened
Integer overflow in the Bluetooth stack of JOYNEXT MIB3 OI MQB 0304 and earlier allows attackers to alter processing via crafted HCI packets. In tsd.bt.phone.mib3, pLink->rxLen wraps to a small value while the underlying non-fragmented packet data remains unchanged. Bluetooth pairing over AVDTP is required; the flaw contributes to a three-vulnerability chain that executes code as the low-privileged phone user.
The record
- CVE
- CVE-2023-28908
- Published
- Jun 28, 2025
- Updated
- Jun 30, 2025
- Vendor
- JOYNEXT GmbH
- Product
- JOYNEXT MIB3 OI MQB
- Classifications
- CWE-190, CAPEC-92
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 28, 2025CVE publishedPublication date reported by the CVE source.
- Jun 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=0304
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
- Black Hat Europe 2024 MIB3 attack demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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