Integer Overflow in Non-Fragmented Data Reception
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A specific flaw exists within the Bluetooth stack of the MIB3 infotainment. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow when receiving non-fragmented HCI packets on a channel. The vulnerability was originally discovered in Skoda Superb III car with MIB3 infotainment unit OEM part number 3V0035820. The list of affected MIB3 OEM part numbers is provided in the referenced resources.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Preh Car Connect GmbH (JOYNEXT GmbH) | Volkswagen MIB3 infotainment system MIB3 OI MQB | up to 0304 | — | No fix listed | CNA |
- Volkswagen MIB3 infotainment system MIB3 OI MQB VendorPreh Car Connect GmbH (JOYNEXT GmbH) Affected up to 0304 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28908
- 2026-10-03 Alias added: GHSA-wm7p-28g9-67f7
References
More Preh Car Connect GmbH (JOYNEXT GmbH) vulnerabilities
- TI-2023-13402 Integer Overflow Leading to MTU Bypass CVSS 3.1HIGH 8.0
- TI-2023-13398 Heap buffer overflow in picserver CVSS 3.1HIGH 8.0
- TI-2023-13399 Command injection in networking service CVSS 3.1HIGH 7.8
- TI-2023-13400 A lack of access restrictions on internal memory regions CVSS 3.1MEDIUM 6.7
- TI-2023-13397 Bypass of secure boot process CVSS 3.1MEDIUM 5.2
- TI-2023-13396 Integer overflow in Preh Car Connect GmbH (JOYNEXT GmbH) Volkswagen MIB3 infotainment… CVSS 3.1LOW 3.3
Sources
- CVE-2023-28908 · CVE Program
- CVE-2023-28908 · NVD
- FIRST EPSS
- GHSA-wm7p-28g9-67f7 · GitHub Advisory Database · CC BY 4.0
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